Right on. If I waited until I could spend $850 on a travel tripod I'd never have one at all though. The only way I could justify spending more than $300 on a tripod is if I made a sizeable portion of my income from photography.
Of course, if you told me I would spend $900 on a lens for my camera 5 years ago, I would've told you you were crazy. But I did just that a few months ago.
I definitely don't advocate buying the cheapest, or even cheap, but I certainly fall in the "good enough" camp on a lot of things. The $850 tripod sounds ludicrous to me, but I may be out of touch. If I bought it I would throw up thinking about the glass it coulda got me instead.
No disrespect, just a little sticker shock at your suggestion.