I bought RE: R yesterday and so far have had a tremendous time with it. I've never been a RE fanboy, in fact, the only other RE game I've played was RE 4 for the Wii. Nintendo's decision to launch the Circle Pad Pro alongside this game makes a lot of sense as -- in my opinion -- it significantly improves the gameplay experience over playing without it.
A lot of people complained of the lack of a second stick on the 3DS and now a lot of people are complaining of having to buy one for the system. I agree that it should not be necessary, or as expensive, but it is what it is and I think this is a great opportunity for us 3DS owners to support the future of the console.
It is my hope that not only does RE: R sell really well so that we can continue to have high-quality games on the 3DS, but that the Circle Pad Pro also sells really well (having it be a Gamestop exclusive was a terrible idea) so that other developers embrace it and release games supporting it. If there is a large number of Circle Pad Pro owners, then developers will be more comfortable with the idea of putting games out on the 3DS knowing the experiences will not be limited, and isn't that what we want?