Owning VisitVegas.info (and considering offers for it) may make my appraisal biased, but here goes. (Moderately driven end-user)
VisitVegas.us - low to mid $$$
VegasWedding.us - mid - high $$$
AmericaBlog.us high $$ - low $$$ (thinking americaNblog.us would be qualitatively more.)
As Always IMHO
David