Wow EVZ, you seem to have absolutely no clue about why we're asking for those planes that "don't make the game better".
We're asking for them beause they fill in major gaps in scenarios and special events, which is a BIG thing for aces high. Nobody has anything quite like it, and its proved popular enough that WoT (probably something you would consider to be a top of the line game) copied it as best they could. We're asking for them because they're sometimes better reprasentative of a plane from a specific time than a current variant we have now. And we ask for them because they would be more fun to fly than something like a Do 335, or an F2G.
Bigger, faster, better(?) may be good if theres some worthwhile goal to accomplish that requires you to be in a very competative plane. But then again, my 190A5 or 109E always seemed competative, so I don't really need bigger, faster, better. The same is true of most players as well.
BTW, are you aware of the fact that the Is-3 is still inferior to the Tiger II in every way, save its HE shells? Hell, even the Panther's 75mm penetrates more armor at close range.