I have a T5i and it's treated me well for a while. I used and older XTi before that. Both cameras are capable of better pictures than I am. I used an older entry level Nikon before getting the XTi and it was also a fine camera. I preferred the Canon controls, but that's the only thing that encouraged the switch.
The 70D is a better camera than the T5i, so there's definitely nothing bad about moving in that direction. Look on Amazon and you might find some good package deals. That's where I got my T5i. I'm sure they have them for the 70D as well.