I have
Sega GameGear with 6 games - currently displays only white screen
Sega Genesis (MegaDrive in EU) with over 50 games
Sega DreamCast - not really pre-1995, but used to emulate other consoles such as NES GB and Sega Master System.

Pentium 90 - I believe this one is 11 years old. I have actually two of them.
Sony Playstation - bought this in 1996.
I've some more P1 machines including 100, 133, 166, 200 and 233MHz, most of them are dell's.
Of newer machines I have PS2, NGC and GBA.
When I got more time I will get following:
C64
Amiga
Atari ST
ZX Spectrum 48
Apple IIe
SNES
SMS
NES
N64
Today I emulate them all, but I would like to get the real machines just as private collection.