So what have you regretted about selling one?

[CLASSIC87']

I guess what I wanna kno is how do you know how much you will regret getting rid of something... BEFORE you actually sell it. As some of you know I sold my Blazer about a month ago. Well during the time it was advertised I had some people offering to buy my 87' SWB. I've always said that I would never sell it... but the offers are getting harder to turn down. I don't need to get rid of it... and I've been second guessing myself the more I think about it. SOOOOOOOO... any advice as what you guys have experience?!?

Anthony