What's your budget? If you're okay with spending $1k on a D7200, I would actually recommend that you take a serious look at going with a full frame DSLR - the D610, in particular. It's close to that price point, and has a reputation for being a very good DSLR for the price. I started out with a D5200 myself, thinking it'd be all I'd need, but wound up upgrading to a D750 earlier this year. The difference between crop sensor and full frame is very evident. You'll save yourself a lot of money in the long run by going straight to full frame if you even think you'll one day do it by simply buying full frame lenses from the start.