I remember upgrading my Atari 400 from 16k to 32k, cost something like $160 for the board. Tape cassette drive and all that stuff.

I had 3 Ataris, then when straight to a 10 Mhz 286. Never did any of them "funny" computers. Remember paying $560 for 8 Mb of memory foy my 386 though, and $360 for an Atari floppy (60k!) disk drive. Gee, if I had all that money I wasted on that old junk... Was fun, though!