It's called Texas Hell Week, and it takes place in Fredericksburg TX this year March 13th - 20th.
Great riding. Every ride begins and ends at the Sunset Inn, in Fredericksburg TX. A week of riding costs $95, + the hotel, which is $55/night, or $65/night for a double.
You bring your own bars, gu and buy your own food. But, it's still do-able for under $1000 for a full week of centuries and brevets including airfare, whereas a week at Pac Tour Desert Camp would be twice that.
Or, you can do both.
I'm already signed up for Texas Hell Week and have already reserved my hotel room.
Hope this helps.
Mitchel