Rebought a lot of games once I got a gaming PC, thanks to the Steam sales. Digital PS1 classics as well.
I've done cross platform I've done maybe 2-3 times (Grand Theft Auto V, Read Dead Redemption, Battlefield 4). I planned on doing it for Destiny. Mostly did for the different online communities.
Everytime I did the cross platform though, I would immediately regret it. Friends would either stop playing or lose interest. Thankfully returned most of them. Keeping things contained to one console from now on, --- XBL/Steam: buddhabarracuda | PSN: buddha_barracuda
And I just won Max Payne 3 for $8 even though I bought it on PSN before( the digital copy eats up way too much HDD space for my taste.) --- Playing: Half Life 2, Mirror's Edge, Vampire The Masquerade, System Shock 2, Borderlands 2, Mass Effect 3 PSN: T-Snake94, XBL: T-Snake 94, Steam ID: T_Snake94
I've bought a few PS1 games a couple of times, mainly because I wanted to get them in much better condition.
I have also bought some games on the PS3 way back, sold my PS3 and those games, then bought them on the 360.
These are some of the games I can remember:
Metal Gear Solid Grandia Final Fantasy VII Final Fantasy VIII Final Fantasy X-2 TES IV: Oblivion Devil May Cry 4 Grand Theft Auto IV Call of Duty Modern Warfare Call of Duty World at War Fallout 3 Guitar Hero World Tour
I've also bought a game on one platform and then on another when it was released on there, like Minecraft, Terraria, Final Fantasy X/X-2 HD, Metal Gear Solid HD, and probably some others. --- GT: Zichu PSN: Zichu NNID: Zichu1