Looks like Capcom finally had a good idea. Since I got my copy of Ultimate Marvel vs. Capcom 3, the nostalgia bug bit me and made me want to revist some of the older Capcom VS. games that I played on the original PlayStation.
I did get a 2nd-hand PS1 earlier this year and me and my cousins did get to play Marvel Super Heroes vs. Street Fighter, Marvel vs. Capcom and Marvel vs. capcom 2 HD. We saw first-hand how the VS. series evolved into what it is today. However the PS1 versions of MSHvSF and MvC1 are not the best ports since the PS1's hardware couldn't handle the full 2v2 experience. Those versions didn not have a true tag system and your 2nd character would only be an assist.
Since I got MvC2 HD on the PS3, I've been longing for a PSN release for all the 2D VS. games starting with X-Men vs Street Fighter. Of course it would be the true arcade ports which enabled you to tag out with your 2nd character while the other heals their red health. Capcom did answer my prayers in a way because they will be releasing Marvel Super Heroes and Marvel vs Capcom in HD on both PSN and XBLA. Dubbed "Marvel vs Capcom Origins" the game will feature an HD makeover and, from the looks of it, similar features done in Street Fighter III: 3rd Strike Online Edition such as online play, sprites and screen settings, even those challenge counter things you see on the side at 0:56. It's set to come out in September this year (2012) and since SF3 and MvC2 went for $15, I'd say that MvC Origins will also run for the same price.. Unless Capcom will be Capcom (ie EVIL).