I hate SBAs. To this vision-challenged person, they are too similar to quarters. The Sacajaewas are just fine.

I don't currently carry change for any great length of time, though, and with dollar coins that might have to change. My smartphone doesn't want to share a pocket with a coin purse, and loose coins are a pain with other pocket contents (keys, pen, magnifying glass, etc). So I don't know where to carry coins any more, and in practice they end up in a bowl until I remember to grab just a few before going shopping. (Well, quarters go to the car for parking meters.) I would not miss pennies, and in fact tend to leave them behind if there's a receptacle for them at the cash register.