How many other guitars do you have?
I'm pretty much a 1-guitar-at-a-time man. I have a backup guitar, but I never ever ever ever play it (which is a good thing as it sucks BIG time!). If I were to get a custom, I'd keep my lovely Ibby as a backup, but I know I'd never play it. Then the old old one can go.
That said, I was most annoyed when my parents sold my first guitar (okay it was a rubbish quality squire strat, but still...) without asking me whether I still wanted it. Now that I DID want, as it was my only guitar for over a decade!
Roo