The range near me knocks you for 45 cents a bird so 100 clays is $45.00 plus the shell cost. It's cheaper than a round of golf around here and a hell of a lot more fun!
Buy the 100 buck membership and the cost drops to 10 cents per bird...
Two of my co-workers shoot both the Steel Challenge and USPCA matches monthly as well as some other less local matches and they suggest 180-200 rounds per match and in 45ACP that ain't cheap. The cost is usually just $10, which is waved if you come early and help set-up, and the range is only 15 minutes from my house. Just need to convince my 3 teenage daughters to quit spending all my money (not directly but with sports, field trips, dances, etc) so I can play but I have 8 months of school left so I don't need the distraction.
I am lucky too, I have a trap club 10 minutes from me too. I can drive for an hour and a half and hit almost half a dozen gun clubs. 97322 go look for yourself

Too bad I have the aforementioned kids' expenses...