I've done the same, many times actually. You see that "I really want it" gun, walk around pondering forking over cash that could be put to better use for a while and then ultimately just leaving... I've slept on more than a few and then made the decision to not make the purchase. I have left a few alone for weeks and/or months before and did finally buy them...and then down the road keep asking myself why did I end up with this... "Gotta have one of those" is the reason I have about 15 9mm handguns in the safes...and only utilize three of them really, a Glock 19, a Browning HP, and a Sig P365.