My bucket list is small, as is my areas of interest now. I used to want every type of 1800's American single shot cartridge rifle I could afford, and some I couldn't afford too! As time passed, I've concentrated on Marlin Ballard rifles, and Remington Rolling Block and Hepburn rifles exclusively. Sold off a bunch of others, but still have a few guns outside my interest that I've just had too long to want to let them go.
There's only maybe 4-6 rifles within my collecting/shooting interest now that I'd like to buy, but they're expensive and rare enough to likely never obtain without something else going away to fund them. I did recently pickup one bucket list rifle at the CGCA show in May when I bought my engraved #6 Ballard Scheutzen with a George C. Schoyen barrel. I've got several #6's, but none were the factory engraved versions, so that niche is filled now.