The 10 and 16 are the length of the frames.
The 16 foot is appealing to me, but I don't know much about the Ken Quilting machine. Their website is no longer for the machines, so I wonder about being able to get service if I need to. I'm going to call the place I would take it to and talk to them tomorrow. I really didn't think about future service issues! The down side to me is that it is 16 feet long. Double edged sord sort of. It does not set up any smaller. The 10 foot table is newer and comes with the Juki machine.
Both are set up and both ladies have offered to demonstrate when I make it out to see them. I haven't been able to find much on the internet about the Pennywinkle frame nor the Ken Quilter machine. So, there is something about each package that's a bit of the unknown to me, other than the fact that I'm getting into something I've never done before.
Will a king size quilt fit on a 10 foot frame? I don't know that I'd ever make a king size, but heck I never thought I'd be thinking of doing this to begin with.
Thanks for all of the responses!