There's a Smith & Wesson Model 500 for trade on Tampa Gun Trader. Part of me wants to try to trade off the Gun Blog .45 (although it's commander length and he stated he wants it in full size) only because the 500 is one of those pistols I've always wanted.
There is no logical reason, much like my desire for a Desert Eagle in .357 Magnum, it's just something I'd love to have. I've never shot one because none of the ranges near me rent them which is sad because I probably could satiate myself just by renting one every here and there. Regardless, I'd love to have a .50 caliber handgun. Mostly because I'm a recoil junkie.
However, logic clearly dictates that I don't need that bad enough to trade my one and only .45 ACP firearm. .45 ACP is massively cheaper than 500 S&W. I can use the Para to shoot competition. Technically I could shoot the 500 at IDPA / IPSC as well, but there are penalties for flame broiling the Range Officer. And in a pinch, I would think the Gun Blog .45 would work a little better for self defense.
I wish I was at the level of gun ownership that would allow me to trade out firearms. I use each and every one I own (well, not the .22 rifle that much, especially now that I've got the pellet gun). None of them are safe queens which is generally what you trade.
I do take solace in the fact that the simple fact that I can own one is enough to give Paul Helmke ulcers.