It is because it's price related and we are currently going through severe volatility plus the price has performed poorly. Spending (selling) could very likely end up being a huge disappointment when we pump back up.

Your flight of $650 could easily be a $1.3k flight in 3 months, and people will not like that.

That explains why spending isn't that good of an option unless you manage to sell the bull run high, but who managed to do that? Not many I'm sure.