I had a 2 Megabyte RAM expansion for my Amiga 1000. This was so much RAM that I could put a bootable floppy into it and boot from RAM. The RAM-Disk survived reboots and some crashes.
Crashes happened quite often because the OS had preemptive multitasking but no memory protection.
unfortunately I just recycled my two A500's. They'd been sitting in the crawl space under the house and weren't being used. Not even sure they worked anymore. My 1080S broke several years (decades) ago so I hadn't used them in a while. One I remember had the 1MB chip ram upgrade that you did yourself by cutting a trace on the mobo between the 68000 and Agnus chips. Suddenly I feel old...
I have a bunch of 1200's w 040 accelerators, extra memory and whatnot boxed up somewhere. Still have a library of boxed games too... and Amiga Power of course ;)
Hayes 1200 baud external modem -- about the size of a paperback book, lots of flashing lights, and five-hundred bucks. I even had the sidecar, which as I remember was a little box that carried it's own PC. The whole thing was over $2K
http://www.pcworld.com/article/200083/inside_the_amiga_1000....