Whatever gives YOU the most pleasure/fun/enjoyment/satisfaction/etc.
If you truly get a lot of "the good stuff" out of just having the unbuilt kit, then keep it that way.
Myself, I just don't get that mindset though. Makes zero sense to my brain (and gut). I'm all about the building and flying.......just "having" doesn't do it for me. But to each his own I guess. It's your kit, it should make you happy. Build/fly it, or preserve/display it....it's all good.
That said, the one thing that I am more judgmental about when it comes to the collector mindset is the whole "It's worth $$XX, but I'd never sell it" thing. I'm sorry but that's just stupid. The only time something is "worth" a given amount of money is: A) someone is actually about to hand you this amount of money, and B) you actually take it. It doesn't matter if some collector's book or website quotes a particular dollar amount....until someone is actually willing to pay that amount, this number is irrelevant and meaningless. And if a collector says that they wouldn't actually sell it anyway, than it is also meaningless - it's effectively worth NO dollars...none. If you want to keep it because you like it and it gives you pleasure, than I think that's great. But don't tell me that you are keeping it because "it's worth a lot of money" and that you wouldn't sell it....that's just plain silly.
Roland.....to be clear, I'm NOT accusing you (or others on this thread so far) of this thinking, and I don't think that's where you are coming from. This is more a general observation of some collector types I've come across.
Actually, if it was me, I'd probably put those "it's worth $$XX" theories to test and I'd sell it. Assuming I could get a good amount of money for it, I'd put that cash to use towards something more to my tastes.
Keep it as it is, or build and fly it, (or sell it!)......either way, I hope you have fun,
s6