I think some people are confusing "classic" with "expensive" here….
Remember, one of, if not THE most sought after classics are old steel Konas, and they were never that expensive. Its the same in the car world. The cars that people still love and cherish, the ones they make magazines for – Minis, Landrovers, Ford Escorts, Fiat 500s,aircooled VWs……
If the original Inbred goes out of production as it seems it will, that's a sure fire classic. Even now a used frame sells for waaaay more, percentage of new price wise, than just about any frame out there. I only lost £30 on one I sold and people were lining up for it.
I think the original Spesh Enduro has pretty much reached classic status already too.