I've also considered buying more tokens to upgrade my level. Getting the 5k prizes has not been a problem, I sometimes get more than what is expected according to probability. The reason I haven't upgraded is because I worry the price of FUN will keep going down making it unprofitable to cash out if I need to sell them for BTC.
Been a super oppportunity to do so for the last couple of months when prices are low. Might still be time to do that, Bitcoin is recovering to 34k and pulling alts up but if it fails to break 35k again, another pullback means another discount period especially for alts.
Don't want to regret when BTC does move up finally and then FUN becomes pricey too;)