You only have somewhat expensive bikes on offer. (as of Dec23 2020).
Question 2: Are Ghost bikes gone from REI for good? Are they ever coming back?
@in7sky thanks for reaching out about availability of FS mountain bikes! Although our buyers have worked tirelessly to bring in more bikes over the past few months, demand continues to be very high, causing some of the gaps you're noticing in the selection we have available right now. The good news is that we do plan to carry more mountain bikes - however, we do not expect to have our full assortment available until spring/early summer.
We will check in with our cycling team on the specifics about the DRT 3.1 and Ghost options and reply again with more details.