Big Lots and most budget stores now have tons of Wii lightgun clones if you desire something else.
To be honest, I used my Perfect Shot maybe twice and wasn't impressed.
Also, remember, if you need light gun games, Dead Space Extraction is just a great game. Most of you will disagree with me, but I also had a certain love for Samurai Warriors Katana, which was a light gun game except that you wield a sword, but it plays the same way (No waggle swordfighting, just point and shoot to slice.). It wasn't the best game ever, had a ton of problems, but I loved it dearly simply for the boss battles and variety.