I know they will fetch a bit more because they are nostalgia (my first computer) purchases, but why do so many Ebay auction ask the moon for the 400? If you look at recently sold 400's, they don't fetch half or even a third of these $150+ auctions. Yeah, I might buy a minty 1200XL or ATR8000 for $150, but not a machine that I have to spend $20 for memory and $25 for Svideo upgrades. Having to do those two upgrades is what keeps me from pulling the trigger. The 800 already has these upgrades standard, plus the nice mechanical keyboard. So, what's a stock good condition 16K 400 really worth to you?