Monitors that are keepers?

Which monitors are the ones to look for and keep? Yesterday I was looking at an old 20" NEC Multisync, I think the model was JC20 something, and I ended up leaving it behind (ran out of time, didn't know if it was a "good" monitor, or even worked). It "looked" neat, but old. Monitors, especially the big ones take up HUGE amounts of storage, don't stack well, and break easily if dropped. I have less than 20 right now, but they are still one of the first items I look to when I want some space. What are some of the good monitors to keep? (repeating myself I know) Right now I have (3) 2086A3SG Silicon Graphics monitors (2) HP 1097C 1 20" RasterOPs 1 Viking Moniterm monochrome two page 1 Sigma Design high res gray scale (lab view I think, 1600x1200). 1 Radius TPD (3) Radius Color Pivots (3) Radius B&W pivots 1 CTX 1765 color 1 Optiquest Q73 17" color (8) Apple 13 RGB high res half a dozen various small monochrome and NTSC 1 Sony 1304 1 Atari something Pretty obviously this is too many, and the list doesn't include all in one systems or a couple DEC VT420 terminals I just added. Many of them are in limbo, where I haven't gotten them to work yet, but I "think" they are OK, which isn't quite good enough to sell them or use them. I want to have monitors for everything I have to play with, which includes an IBM 5150 and a HP 735/50, but have pretty much decided I am NOT going to start collecting Commodore or Atari (very much, maybe an Amiga and something like a 1200XL). Suggestions?