I've been using America's Country Store for a few years and have been pleased with the results. Before that I used Wiggles and Wags. It was higher, but I was happy with the way they treated and groomed my dogs.
I tried 2818 Grooming when we first moved here, but I would not go back there.
However, if I could find a good place that could beat the $40-45, I'd be happy to give it a shot. How much are Petco/Petsmart/other options?