Ditto on the show advice - definitely bury them in that case. I generally try to quilt in such a way that minimizes the number of threads I'll have to bury. If I'm meandering I always start off the edge of the quilt; if I'm stitching in the ditch I plan so that I can do the minimum number of starts and stops.
I made a small quilt this past year for a show which I quilted in many different color threads, so I had a ton of stops and starts. I did bury the threads and I think it probably was in the hundreds by the time I was done. It was worth it as I did end up with a ribbon.
When I make a quilt for a family member or a child, I'm much more concerned with the stability of the quilt, so I will end each row of quilting with small stitches or a back stitch.
I'd love to see photos of your quilts!