Microtransactions are here to stay. Theres nothing you can do to avoid these things. If anything, right now you are missing out. For instance, look at Marvel UA. Came out for the ps3 and 360, same game(runs better on 360 in this case) and some months later DLC is released.
Does the PS3 version have these characters? No. So what you're basically doing is limiting yourself and saying no matter what, you dont want extra content. If this "holding out" conspiracy of yours is whats holding you back, remember that they wouldnt be so dumb as to not "hold out" on every copy otherwise the DLC wouldnt sell.
When it comes down to it, its your money but i think it would be pretty dumb to bail out on the 360 and buy a PS3. If anything just wait and get a ps3 once you can afford both(and by then more games will be out)
Does the PS3 version have these characters? No. So what you're basically doing is limiting yourself and saying no matter what, you dont want extra content. If this "holding out" conspiracy of yours is whats holding you back, remember that they wouldnt be so dumb as to not "hold out" on every copy otherwise the DLC wouldnt sell.
When it comes down to it, its your money but i think it would be pretty dumb to bail out on the 360 and buy a PS3. If anything just wait and get a ps3 once you can afford both(and by then more games will be out)