I picked up a late 80s or early 90s Rock Hopper at a garage sale and I use it mostly to pull my kids' trailer Then I added a rack and grocery bag panniers and it makes a great commuter/errand-runner/utility bike. I like the open panniers because it's easy to throw in a shoulder bag or backpack. It's not my main commuter but the one I take when I have to carry a lot of stuff.