I listen to a lot of jazz, though there's periods where I don't. At the same time, I hear jazz in a lot of other music I listen to, prog, metal, rock, funk, etc... I used to listen to fusion more, especially in my late teens, but not as much lately, though I'm mostly referring to the late 60s/1970s jazz-rock fusion stuff. I've heard just about everything jazz-fusion from that period, though I occasionally find a new gem, that I only dip into it if I'm really in the mood. I've always enjoyed 50s and 60s jazz since discovering jazz-rock, and appreciate it more and more each year. My first love with jazz was the Charlie Brown Christmas soundtrack back when I was in middle school, though nothing else for a while. When I was 17 I got into jazz-rock and eventually I would explore post-bop or other "traditional" styles of jazz, as well as other fusion types. My tastes have gravitated towards more world-fusion as of late, lots of great stuff out there, Pat Metheny Group's "Still Life (Talking)" album and Garaj Mahal's "Blueberry Cave" album are good examples. Non-Western music, to me, mixed with jazz is refreshing when you've heard all the other forms of jazz so much, either old or new. I also take pleasure in the different sounds, timbres, landscapes created by non-Western instruments, whether mixed with guitar/keys/bass/etc... or not. While I don't like "smooth" jazz of the 1970s, 80s, and 90s, I do find a tune or two I enjoy that I find to be a guilty pleasure, however, I think most of it is cheesy, sappy, an lacks creativity. I'm a sucker for slap bass so I do find gems in the wasteland of smooth jazz. I can get down with 'harder' jazz-funk that the untrained ear might classify as 'smooth jazz' on surface level. Stanley Clarke's "I Want To Play For You" is a good example.
Serious reply, though - does Bela Fleck & The Flecktones count? I mean, they're considered jazz & bluegrass, among many other styles and genres.
Definitely counts. They are a great band, some of their albums are more jazz-fusion, some more bluegrassy/world-fusion, some are a nice balance of both. Victor Wooten is one of the best jazz-fusion bassists and his solo albums might appeal to you if you haven't checked them out.