That's about the average retail price for a used 2016 in So Cal where I live. Take a look at Nada.com and plug in your zip code to see what it comes up with.
For what it's worth, my research indicated that the WR is a much more capable bike than the CRF-L. I've had my WR for 4 years and have put over 10,000 miles on it, and I'm very happy with it. The only defect I've experienced was when the stator quit, but that was covered under a recall.
Lee