But in the last couple years, there's been a near complete collapse in it. The racks of scifi have abruptly dwindled to a handful of lonely books. The entire book section has dramatically shrunk as well. This is across thrift stores, not just one.
Is it:
1. nobody buys physical books anymore
2. nobody donates physical books anymore
3. donations seem to be driven by estate sales. Maybe the book lovers have already all died out and their estates are liquidated
I don't know. But I'm glad I bought the books when I could.