I've always thought i am that APSC person and I ended up not taking the camera that much with me because it was small difference to compact camera i was carrying in my pocket. I thought it was skill issue because my photos just didn't have that bite/detail/look. The moment i got older full frame i realized that "look" has so much to do with the sensor size. In beginning i only had cheap 30euro manual soviet lens and even with that the quality of the photos just shot up.

Full frame is heavy yes but it can be pretty affordable (lenses from china are becoming extremely competitive).