I don't have a large collection (solely collect toy-like Bing big-wheeled 0-4-0 clockworks) but out of the ones I do have, I love. One day, when the kiddo's are older(and can actually trust them with this collection) I'll display them in an office/attic/basement (here's hoping!)
Which brings me to a separate topic, where is everyone's "layout" spaces? (office? basements? attics? garage?) With members who actually have "homes", did "you" choose the layout room? Or did your wife?
If/when I own, I'd love an actual office but i'd settle for a dark corner of a large garage I figure, one day i'll be a "grandpa" and I'll most definitely pass-on these little wonders down the line..