I do a bit of "all of the above".
For quick access to goof with, I think the single display stands are an obvious consideration.
Two of my 110 BG-42s, 110 Buff Inlay, wood AG, and stag AG are in a Buck retail display case.
My three oldest 110s are on a one piece Buck display stand.
Single display stands have 110NS BG-42 Koa, Sambar 110 Stainless Damascus, 112 Founder, and 124 LE Stag.
I'm repairing a shadowbox for my 102BR, 109BR, and 120BR to hang on the wall.
My 110 Oakie 100 Yr Anniv Cookie Cutter Cut Out is in it's glass topped display box.
Have loose; an old pre-nail nice 112, 112 BCCI Drop point, and five various 110 knives sitting closed on a dresser (near the display stand mentioned previously).
IF I can get it together, I would like to be like John when I grow up. I dig his display gig. It's the grooviest

. (see JB4570's post above)