Crypto can go higher but it might spread out to whatever becomes the next useful crypto..  bitcoin will always be around but at some point money may get into crypto around it more and bypass it.  if eth will figure out how to scale correctly, then that may close the gap and you would see bitcoin maybe 7000 and eth 3000 on next uptrend

also the miner glut is getting ridiculous...  not even worth getting a miner for free now unless you can do hocus pocus on your bottom line to still make gains