Yup very common, in fact will happen to everyone on these cars at some point. Replace it with the Dorman on, it's solid and better made, and get energy suspension endlinks, the moog endlinks are a soft blue rubber that I found wears out fast.

I'm surprised the shop said that with how common this issue is on these cars. If your not going to do the work yourself then you might want to find a shop that's a little more experienced with these cars. Or find someone local from the forums to help you learn. Fwiw I've seen people drive 4+ hours just to have bill boost work on there car, he did my first 3 builds and I learned enough from him to do the next 3 on my own.