Haha, not so. There is this insane kid I know of who has like 180 Macs. Among them he has very rare production Macs as well as prototypes. He has that multicolored PowerBook prototype. He has two Apple IIIs, two Lisas (IDK whether I or XL, maybe XL), a TAM, etc. There are also plenty of people who, unlike myself, have a TAM or a Lisa, or something of that sort. However, I see what you mean. Not many people have this many Macs, and I guess I am up there. Another kid has a more-impressive 80s Mac collection than I. A 128k, 512k, 512ke (was $40 mint in the box), Mac Plus 1MB, Mac Classic, Mac Color Classic, two SE/30s, Quadra 700, Apple IIe (not a Mac, but you know...) That kid was lucky to get them so cheap... Anyway, I have had my share of lucky finds too. All of my portable 80s computer were free. I ended up making the first ever Osborne Vixen computer video on the whole of YouTube, and then another Vixen owner made two more. I will just say that there are tons of amazing collectors out there. The guy I know about who has the rarest stuff (alker33 on YouTube) has 12 Lisas and.... a genuine Apple I computer. No kidding. IDK how much he got it for, but he purchased it in 1993. I am sure it wasn't SUPER special back then.
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I actually don't think I have ever had more than one running at a time. These iMacs have been in various places since I've owned them. I would have one on an play with it, etc., but never all the iMacs at once. I don't know how many you can plug in at once to do more damage than just to one's wallet, but I am sure a pallet of eMacs could either cut it really close or do it. eMacs use more power too.