I make it a personal rule to never buy anything, unless need and want intersect to a fair degree. Then I will look and examine the gun 3 or 4 times, leaving the store and waiting a day or so between visits. For me, I have found this strips away the impulse buy, otherwise I'd have an armory. It gives me time to weigh the value of the buy against what I already have and to think if it is really a need in line with my goals. I know there are many collectors who see things quite differently, and I accept that, there goals are different. I am very pragmatic about my weapons and their specific purposes. When I do make my final return to the Shop or Club, I BUY! The people I deal with are used to my method and I have found they tend to hold the one of a kind's for me until I have completed my process. Otherwise, if someone else grabs it, I wait and usually another always seems to appear.