As a kid, the 99/4A was my first "real computer". My dad bought a Timex Sinclair 1000 to start with that almost immediately was returned to the store and then got the 4A. The 4A was $310 from Kmart, and was shortly before they started dropping the price (Of this I am quite certain since my dad complained that he had lost a good bit of money on it when they dropped the price). I guess that would have been early 1983 and I would have been 7 by that time. I worked my way through a bunch of the type in programs in the manuals that came with it, played a bunch of Parsec, TI Invaders, and Munch Man. Learned a lot from it.