From Pong and memories of playing on some mad Binatone system around my uncles as a kid, the BattleZone cabinets, Jungler, Defender and PacMans that ate up 10p's in my local cafe. The xmas i unboxed that ZX Spectrum and played my first 'pirate' game (JetPac - Ultimate: play teh game!), to the insane £££s worth of gaming rigs that now live in my front room... I suppose it is slightly less expensive than having a crack habit :D
Happy Birthday Home Gaming!