LittleDentist ... you have been given some good food for thought already.
The questions from
PatriceJ are important ones to ask yourself, in coming to your decision.
Another question ... which I think you have already answered ....
* Do your current machine(s) do everything you want, except for the alligator/python fight?
If your answer is yes .... you may want to consider a HandiQuilter Sweet Sixteen
(or one of it's re-branded machines).
Why? ... from personal experience ... a bigger throat does not give you higher space.
You are still wrestling the alligator, but with a little ease but not a lot easier.
Gaining the height, of an S16 etc. makes a huge difference.
(IOW consider the total opening, not just the width)
Which takes you right back to
PatriceJ's questions .....
Take your time, do your research, a bunch of test drives and then choose what is right for you!!