I have a 5500/275, which I love dearly. Wouldn't change it for anything, at least not for a few years yet. Thanks Ambrosia for not being seduced into making games that only the very latest computers can run. Why wouldn't I upgrade? Well, USB is okaaay, if you want cheap joysticks and scanners, but for data transfer at a decent rate - for removable drives or CD writers perhaps - USB sucks, sucks, sucks. (And I'd have to buy my peripherals all over again.)
Under OS 8.0, I found that I couldn't use virtual memory. If I did, and the computer crashed, it took out the partition with the system and apps on it. sigh Little by little, adding sprockets and things, my OS got bigger and bigger, until I couldn't play EV:O any more! Or do much else, to be honest, thanks largely to all the crap that comes with Internet Exploiter.
Recently, I slapped another 64mb in, and now I'm back with a vengeance. One of the first things I did with my upgraded Mac was download 1.0.2 and start a new pilot. Very, very cool.
Oh - other Apple computers: a Classic II (!), a Powerbook 5300 and a Newt 2100.
At work they expect me to use a PC, but that's their problem.
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"I wear a helmet
But I've got a bare chest
I do some talking
My phaser does the rest
Don't like your tentacles
Don't like your face
Don't like your planet
Think I'll lay it to waste
'Coz I'm Rambo in Space
Yeah, I'm Rambo in Space"