Hi @bondurantdt,
We (a mid-size public higher-ed campus) use Watermark Course Evaluations & Surveys and have been very happy with the product. Pricing is always a sticky topic, and probably varies based on the size of your school/institution. When we did a price comparison of course evaluation software options a year or so ago, we found Watermark was in the middle of the pack. Given that the price is mid-pack, we're happy with the system, and we have about 10 years of data in the system now, we'll be continuing with Watermark for at least a few more years before looking into things again.
Off the top of my head, Explorance Blue and CourseEval are a couple other somewhat popular options in this space, and I'm sure there are others as well.
I hope this helps a bit!
-Chris