I just downsized to the 770. I had a 4500d but rarely used it so I sold it and got the 770... which oddly enough I haven't used!! I was planning to use it today but have to load my embroidery software on to the laptop.
I only used the big hoop once, to make a sweatshirt for my sister. I don't foresee me doing shirts anymore (for me they were always a pain in the butt) so the 5x7 will be aokay and it was a heck of a lot cheaper than the 770. I got it on Amazon.