I think we're not at the top yet, but we sure are close to a shifting in the economics behind all this, as a lot of pumping and re-investing was going on. There are a few people all-in on this, while the real technological advancement is more or less a standstill in reality (bitcoin is still working like it was in 2014) ... Ehtereum is strange in my opinion... the inflow of money is now higher than the supply added... but that will soon change. I would stop buying now and see what happens. You can't lose if you don't buy in :)