Good point, but keep in mind depending on how you ride, the conditions you ride in, and the quality of the bb you may be servicing/changing that BB pretty often.
With the press fit frames I think the same tool applies for most bb brands since you don't need a specific pattern wrench to thread the cups in/out like you do on the threaded frames.
You could also consider making your own tool. My press is a piece of threaded rod, two nuts, and some huge washers that set me back probably less than $5. I've seen/heard of folks removing the press fit bb using the same or similar tool you use to remove headset cups. That is an easy/cheap DIY tool that can be made from copper pipe. You could probably get away with a screwdriver too.