Don't be "embarrassed" by the amount of kits that are unbuilt. I have all of mine(over200) in my very own"subterranean hobby shop" ( my basement) .
I do take the time, occasionally, to ooh and aah at what I have amassed over the years.
As one of the TRFers says, " My wife is gonna have a hell of a garage sale if I die"
Mark T