Another thing to think about
: storage and weight. Do you have space to leave it out all the time, or will you need to be moving it because I think it can be quite heavy for some people. I know that in my kitchen, I would never use my KitchenAid Mixer as much if it were put away in a cabinet or shelf, so it has a dedicated space on my counter. I don't have the room to leave out an Accuquilt cutter since I share my quilting space with the guest room.
If you have shoulder, back, or neck issues, you'd also want to consider if hand crank vs electric is the way to go for you. Weight would also be much more important then, as I believe the electric weighs much more than the hand crank. It also takes up quite a bit of room when they're opened for use.
On the other hand, a slotted ruler is easy peasy to store
