We had a Famous Dave's come in the last year or so before we moved from NE. Only ate their once (actually, had the drive-through) as it was
always crowded, and quite expensive. I was with a friend on his birthday, and his parents wanted to take us out to Famous Dave's, until we found out there'd be an 80 minute wait, and something like $25 per head. We went to Chiles instead, had a 20 minute wait, and about $15 per head
Good stuff, too.
Anyway, back on BBQ sauce... I've tried pineapple juice before, as well. I do like it, but not on everything. I should probably revise my listed recipe. Ketchup, honey, orange juice, fresh ground pepper, sea salt, molasses, and brown sugar is the base. That one it's own actually isn't that bad, just really sweet. From there, depending on what taste I'm going for, I'll add various juices, spices, and the like. Weirdest thing I've ever added (that turned out good, at least) was vanilla extract. So long as you don't overdo it, it adds a nice smooth aftertaste.