In order. BTW my dad was into games too so some of the counsels were in the house and I acquired them when I was old enough. I got everything up to the Comador 64 at the same time after that everything was bought as it came out and for me or by me.
Colecovision, Atari 2600, Comador 64, NES, Gameboy, Sega Genesis, SNES, Panther, Sega CD, Jaguar, 32x, Sega GameGear(not sure of exact purchase order), Sega Saturn, Virtual Boy, PlayStation, N64, Dreamcast, PlayStation 2, X-Box
Thats right this nerd had almost every game system ever. Even the complete failures like Jaguar or Virtual Boy(that one gave me a headache everytime I played it). I didn't get the really exspensive failures. I remeber some 3do or something that cost 4 or 5 hundred.