Mary, as a user of the 7DMK11 since it's releaseI can highly recommend it, but only if your main interests are wildlife and aircraft and especially bird in flight, also it's a pretty mean performer in the macro field. I can honestly say it's the best camera I've ever used, but bear in mind I don't shoot people or landscape, such as the 70D would be useful in this area of photography. Most of the photo's in my gallery since early November were taken with the 7D MK11.
Harry
http://www.worldphotographyforum.com...e=5&ppuser=150