Do you have a handgun that serves you for home defense/carry already?
If so, you're free to look for a gun that's just for fun.
I personally would be looking for a Tokarev, Hi Power, Luger, 1911, etc. I like the military style semi automatics. I've always wanted a Tokarev (which you can find around $300 last I checked) but ammo's drying up for them.
When you say entertainment, do you mean you're just looking for a blaster? Bullseye shooter? Pumpkin exploder? If you have a use in mind, a recommendation is easier.