I've got several fairly expensive apps (PowerPC apps) that I use in my work, and they serve me well. I have no need for them to be updated. They don't offer any new features that I need or want. Assuming Lion will be priced at $129, that's a drop in the bucket compared to what my total cost would be.
So, Apple, tell me again why I would want to "upgrade" to Lion?
Guess you shouldn't then.
But Apple won't and shouldn't base it's roadmap on extreme fringe use cases.
pertaining to the slider function in Lion, can you made the selected button turn blue or whatever colour the user has customized it to. Would make it easier to pick out at first glance, since in its present method it looks like buttons.