Yes, that's the price... but you can make your own for about $25 plus $25 in gas to run around to craft stores and order stuff on line. Granted if you already have stuff or old popping corks it might be a little easier.
It's really the sound of the pop, and any click added is just gravy.
Wire or heavy flouro, an old foam float with some sort of plastic hollow insert, wire crimps. plastic rattels, ... and shrim or gulp on the end and you're good. LOL.
have fun, it might be more espensive, but it's really fun to make stuff. Consider getting a kid involved and do it together.