Buying at $7.5k is not even an issue. It's probably going over $10k by the end of the year, or some time in 2018. Nowadays it's actually much easier to make a huge profit in the long run than a quick profit by day trading...

As for the fees, Segwit2x will probably be a required fork for the "mainstream" Bitcoin, since Segwit alone failed to address the problem in the short term.