i have both a computerized juki f600 that i use for piecing and machine applique and the juki 98Q for frame quilting.
if i didn't have a quilting frame i wouldn't have the 98Q, not that there's anything wrong with it because its a great machine, i just don't see the point in having both if you're going to sit and quilt.
the computerized juki that i have has a 9 inch throat so i can quilt just as easily with the computer machine and i have all the fancy stitches for machine applique.