This Memotech MTX512 is an interesting Z80 home system from the early 1980s. The $71 selling price on eBay was reasonable.
Apple Lisa 2’s are rising in value. This Lisa 2/10 sold on eBay for $500 despite not having a hard drive.
I’ve seen Gavilan laptops sell for several hundred dollars in working condition. This Gavilan GCC30 is not working, but has its original carrying case. At $90, the buyer will do well if he can bring the laptop back to life.
Early issues of BYTE magazine continue to bring high prices. Five issues recently sold for $140 each on eBay. The issues were January 1976, February 1976, November 1976, September 1976, June 1976, and October 1976.