With Crimson Passion, I’ve actually had a problem with mine getting too dense in the middle. Not only didn’t I get as much fruitset, but only the ends of the branches had leaves (both last summer and when I was pruning this spring). I opened the bush up quite a bit (almost open center like a peach tree) and will be interested to see if it bends under the load. The bush was planted in 2011, so it should be pretty sturdy at this point.
Last weekend, I came across a Juliet at Stew Leonards (local grocery store). It was a monster (4+’ tall), in a 5 gallon pot, and appears to have some fruitset. I splurged a bit on it- $50. But, I figured that if I could ever get something that size by mail, it would be at least $30 plus $20 for shipping… 
My $50 “bargain”:
That was the only Juliet they had, so I couldn’t wait to see if it goes on half price sale in a few weeks. They had a decent variety of large (maybe 7’) apple trees: Mac, Maccoun, Braeburn, etc, as well as Red Delicious and Granny Smith.