Ours is a canoe - an Ally 17- not a kayak, but I thought I'd add it to the discussion anyway. Packs into 2 duffle bags and does not use inflation - aluminum folding frame. Handles beautifully. Can be car topped like a hard shell boat. Assembly easy, but takes about 25 minutes with a cranky back lol.
This is a flat water design which tracks excellently, but they make a rockered version for white water. I've not paddled a finer canoe of any construction.
They also make shorter models. Weights 47 lbs btw.
Options include a skirt, pontoons for fishing, it can take a trolling motor and a third party sail kit. Replacement parts and repair kits easily available.
Ally canoe by
jglennhart, on Flickr