People (ie SEGA Fans) still claimer for Arcade ports to this day, Fan still want SEGA to do better ports of the likes of SEGA RAllY II , House Of the Dead and hope one day SEGA will port Scud Racer to the home and these are decades old Coin ups. Even in the early 90's they were plenty of SEGA fans hoping for better ports of SEGA sprite scalier to systems like the Mega CD and Saturn .
Of course Sega fans clamour for arcade ports, who doesnt but its usually of ports for games that's never been released on console before. Half if not most of the sega fan base wanted to see ports of ARABIAN FIGHT, GOLDEN AXE THE REVENGE OF DEATH ADDER,POWERDRIFT, since the MCD would have been able to do a bit of justice to that game or games like DESERT TANK and many more for the Saturn. What most of us didn't want to see was another tired port of a game everyone played to death already especially during the MD era. Your not looking at the context of the time, it was a different market back then, it wasn't the connesseuir appreation of ports of classic titles as it is now, that really started during the Saturn era when i shall add the Sega gamer became a bit older. But during the MD era and looking at the diverse base that made up the userbase? Definatly not a demand for seeing that game, from the magazines maybe(but they didn't say much either) but definatly not from the fans.
It looked great in the screen shoots when you saw it moving and heard it , it was a different matter ( it didn't help that the PC Eng version looked better too). Mega CD had the Hardware to handle the Sound perfectly and the Hardware to give the best home version in terms of scaling
Not disputing that but like i said no one wanted to see antother OUTRUN. That was proved with the dismal returns of the MD version.
In 1991/2 it was have a been a big deal to the Sega users This wouldn't make the Mega CD or its games massive sellers, but it would have pleased SEGA core user - The ones who buy SEGA Hardware with the thinking that it SEGA would port Arcade games to their systems and helped greatly with Mega CD image .
Streetfighter 2 would have been a great deal to sega MD owners, not a port of OUTRUN.
Yes arcade ports would have been a good deal but only of games that Sega had recently created at the time not with old tired ports. That's why ALTERED BEAST was and still is remebered to this day and its not even a great game. But at the time it was Sega's most recent arcade game to be ported. Exactly the same with GOLDEN AXE. Or even WONDERBOY IN MONSTER'S LAIR. Because the new arcade games are the ones that people want to play on their system which happened to be the MD. Exactly like it was when the master system had the ports of a lot of the recent games people saw at the arcades during the MS era in the UK like AFTERBURNER, THUNDERBLADE and OUTRUN. Now what you saying is correct that arcade ports do help the system but from the examples i gave you, the games mentioned at that time were relativly new titles from the arcades from their respective era. The MCD unfortunatly didn't get the chance to carry on that pattern/leagacy and it really should have. But not with games that people had already played and to be honest with you were quite bored of during that period.
The MCD porting a game like OUTRUN during that period would also enforce the point that sega didn't have any new games for the system. Something they couldn't afford to do when up against Nintendo and the SNES they needed the latest games and games the SNES couldn't do. (Of course it didn't help in the long run) but titles like TIME GAL SILPHEED and even STARBLADE did set the MCD apart but it didn't do it soon enough IE they weren't the games that were alvailable straight away.
It was brought to both the USA and UK. The latter line up wasn't brought but a lot of that is down to the lack of any Saturn market consumer in the West
The same reason it was done in japan, fill the gaps, celebrate an anniversary, but they did such a fine good job of it with attention to care and pure love of it it became succesful and strong brand in its o wn right. And luckly it seemed to inspire others to do collections of their own like Capcom's Wonder 3 collection (which was a game that could have easily been released on the MCD.)that it became initself an industry, why because they mixed the ports of classic titles and titles never released. That's why the Sega Ages worked primarly and why the intrest grew to the point it is now.