It is not easy getting those non-wavy walls, and paint will show where all the flaws are. I don't know much about the BTC price spike, but close to or around the time a lot of pay-pal speculation buying BTC, so that may have caused some of the FOMO and FUD around the price pump.
I am not yet sure what to do about the walls (well they are half roofs as they are the attic walls), but I don't want panelling on them. Will have to find a solution.
With BTC, I hear about the PaypPal and Square conenctions etc, but I think that there is more to the pump than that, and less :) I think we are just gearing up and these kinds of dips are part of the ladder.