I chose a crop sensor mainly because I couldn't justify the price of a full frame body and glass to go with it. My first dslr was a canon eos 6mp crop. A full frame 35mm camera will just cost me money and won't make me any. Instead I carefully selected a Nikon model d7200 that has awesome sensor (ISO capability and dynamic range) and AF capabilities so the only my thing I'm missing out on (imo) is DOF and a stop of light compared to a full frame body. I did consider the Canon 7Dii but i don't do sports photography so didnt need 10frames per second shoot speed. Is also considered the Sony a7ii full frame Mirrorless but the EVF is just shocking for me to use. Don't like it at all. That was the deal breaker for me. That plus the lack of glass choice and if you use third party lenses with an adapter it defeats the purpose of a light and compact body. Maybe one day I'll get the Pentax 645Z medium digital format if I go pro (cough cough) and get paid to do it. But first I'll need to work on my forearm strength to lug a beast like that around. In my circle of friends there is one pro shooter and he uses a Fuji XT1 Mirrorless (16MP crop sensor) for most work (weddings, business portraits, street) but for serious stuff he shoots film, and I'm not talking 35mm, that's a small format. The main thing is do what makes you happy but with all things that we want and acquire we are always looking for the next upgrade.