Why do you need a $900 tripod? Please explain in detail, if you can. I want to know the rational behind such purchases. . . . nevermind the carbonfiber thingy, just tell why you have an urge to spend such for a tripod, unless you have a steady business that makes you hundreds a week or thousands a month, to even consider such a purchase where add-ons will cost you hundreds more.
Some spend $500 on a tripod and head, and then end up buying a good one later, so it ends up costing even more. Many are happy with a lowcost tripod. It depends.
http://www.bythom.com/support.htm
yes, I understadn all that, but depending on what kind of photogrpaher you are and what your plans are, if you are having trouble spending $1000 for a tripod, no less, then certain questions pop up. . . one of them being can you really not get excellent use from a $500 tripod and head? We are talking about 1thou for a tripod, and this person is having a hard time trying to find a cheaper price becasue the current price seems to much (no S___!). If we are dealing with an amateur who simply loves photography, and does not have a lot of money to throw around, then we need to get some info to this person asap

If this person happens to be a pro, and is making money and has a good reason for spending such money on a tripod, then it si moot discussion and, by all means, good luck purchasing one. Then you have to weigh the difference such s purchase will make to your photography, and after finally see that it was not necesary becasue, you can't tell the difference, and you are not using it on a mountain climb. I just did my first wedding, and plan on going to Iceland soon . . I'm not going to spend 1thou on a tripod. They speak of carbon fiber like it is the most difficult substance in the world to create in a factory. I've seen how they use it to make sailing masts for big ships. . . . I just am tired of companies ripping people off that have a passion for something, like this person obviously does.
btw, I spent almost 3thou on PCB einsteins and accessories. . . . and no way in hell am I going to spend 1000 on a tripod, no matter how many commercials you see on tv or ads in mags like NG. If you are having trouble spending 1000, then if you have to force yourself, use it to create, manipulate and take advantage of light, which is what photgrgraphy is all about.
I know I may sound harsh on a forum simply typing away here, but face to face it would be a trivial, and pleasant conversation amoung comrades with the same passion. computers have no passion or emotions and we are stuck guessing a person's demeanor, etc

I really hope this person gets the tripod, though. It's just that there are some questions that need to be asked on a forum, where you have no clue about the other person.