Dallas has much better weather during the season - Houston is too humid, especially since the team will be playing outdoors. Houston has had a spotty history with alternate leagues, but Dallas's only foray has seemed to do well.
It was never Xtreme. Only the indoor football league was the Xtreme Football League. The outdoor spring league born in 2001, and the rest, were merely XFL.
The original league's Los Angeles team (and champions) were, however, the Xtreme.
I don't disagree, but the Sun Bowl has been around since 1936(?), and CBS has been broadcasting it for 50+ years, so they should have some idea about where it is!