My "dino" collection includes:
Tek TDS754D digital 4-channel, 2 GS/s, 500 MHz, options 13 (RS232/Centronics i/f), 1F (floppy), HD (hard drive), 2M (2 M/channel record length), 2F (waveform math), 2C (Communications signal analyzer). The CRT has been replaced with an NTSC color LCD screen.
Tek 2465A analog 4-channel, 350 MHz scope
HP 16702 Logic analyzer mainframe with 16534A (digital scope, 2 channels, 2 GS/s, 500 MHz) and 16715A (LA, 167MHz State 667MHz Timing, 2MSa memory 68 channels)
IFR 2390A Spectrum Analyzer (7 kHz-23 GHz) with color LCD screen and tracking generator
I bought this stuff when it cost a lot more than it does now - but I was strongly into the hobby and used and enjoyed it all. These days I really don't need it. I could make do with a much less capable digital scope and a USB logic analyzer.
Certainly the 2465A is redundant here (I should hve sold it the moment I got the TDS), but what of the rest? Resale prices have fallen through the floor. I doubt I could get more than $200-300 for the 2465A, maybe $600 for the TDS (many are going begging on eBay at around $1000), maybe $200 for the logic analyzer, maybe $600 for the SA (they're going begging at $1000+). About enough to buy ONE 100 MHz 4-channel Rigol scope with no LA or SA capability. The weight and bulk of these things doesn't make them cheap to ship either.
What would you do?