I've been through the gambit. Browns -> Reds -> Clears. Used a buddy's Blues at work for awhile, to test it out, too. I'm still prone to my Brown board, but the more I use my Red, the more I'm starting to enjoy typing on it. My original problem with the Red was that I was bottoming out so hard that the typing experience was ruined. Now that I'm not bottoming out, as much, it's slowly starting to become an awesome switch.
I can see the argument that the Browns are a "dirty red", but to me it's just enough tactility to make the difference in the typing experience.
I like the bigger bump in the Clears, but the springs are way to stiff for my preference. It won't be long until my Leopold with Clears gets modded to ergo-clear.
...Edit:
And check out MechanicalKeyboards.com if you're looking for a Pure or Race. I don't think they have any Poker in stock, but you can check classifieds for those. They tend to have group buys for Pokers fairly regularly.