[Bob]

But why bother?

'640K of memory should be enough for anybody.'

NOTE: although often attributed to Bill Gates, apparently he never actually said this.

Given the costs of memory at the time the statement was made, the whole idea of buying more than 640k was ludicrous.

An upgrade from 64k to 128k was extremely expensive in the early 1980s. While I don't recall the exact numbers, I'm fairly sure that such an upgrade would have easily cost hundreds of dollars.

[Dr. Sivana]

An upgrade from 64k to 128k was extremely expensive in the early 1980s.

Heck, most folks were still in the 8 bit world back then (Apple II, Atari 800, Commodore VIC-20/64, a bunch of Z-80 CPM boxes like KayPro and Osborne).

I did check an 1983 gamer magazine from England:

RAM PACKS FOR YOUR VIC 20 HARDWARE

32K switchable to 3K, 16K, 24K + hi-res £69.95

16K switchable to 3K f44.95 8K £29.95 3K £19.95

4-slot motherboard £24.95. All slot directly into the back of your Vic 20.

ATARI 400 16K - £129.57 + VAT = £149

ATARI 400 48K - £172.17 +VAT«£198

ATARI 800 48K - £260.00 +VAT = £299