Yeah dude it is a great idea.
I just went to camp at Windells on Mt. Hood...I also live close by so I snowboard in the summer usually.
When I went, I somewhat expected to get really good, but don't expect to go from barely doing 180's to 720's. You'll reinforce the basics which will help you down the line. It's also great to get the constant feedback. You fall on a jump or rail, and they will tell you exactly what you did wrong and how to do it next time. And most likely, you will get better.
But even if I didn't get any better at camp, I wouldn't really care, because it is so much freakin fun. You board from 9 to 4, then you come back, chill for a bit, and then go skate or jump on the trampolines, whatever. It's amazingly fun, and by the end of it, you'll never want to leave.
You also get to meet some really cool people. From your roommates to your coach, to the cooks, they are all really friendly and cool.
Not sure where your located, but I would totally recommend Windells. They have great coaches and make everything really, really fun. Doesn't matter what age you are.
www.windells.com