I agree with Beller and others about the ROM option. It just didn't make sense back then, considering the size of many of the games. Chips were waaaay too much money back in the day AND the cost of hardware peripherals were similarly expensive. Had the Amiga been outfitted with a cartridge port, it would have further tainted the reputation of the system and besides, the thought of a "hi-end" cartridge based gaming system would have been an oxy-moron to say the least. Neo-Geo had an edge because of its arcade stature. Had that machine been "turned into" a computer or started out that way, it would have been even less successful at the time as people would have surely been confused, not the least of which on a marketing level. Coleco Adam too was a quick bushfire of sorts. Was it a game system or a serious computer? Cartridge and tape drive options built in. Branding and then marketing is everything.