The Home Depot had three types of guns. The first one had a switch and simply blew hot or hotter air. It looked flimsy. The second one had a digital control panel, which is a no-no for me on power tools because I'd rather have analog controls (IOW less crap to worry about). This was the third one. It had what I wanted, plus it can stand itself up, reducing the risk of fire from touching surrounding materials.
Aside from all that, I don't like buying tools halfway. If I'm going to drop the money on it, I won't get it until I can save up for what I know I can trust. I also do house painting for family and friends, so it'll help for stripping paint when the time comes.
In short, I'm a guy and I like tools
A paint gun like this wasn't necessary at all, but it was my new toy!