Eden Models massage place in northern Virginia recently hiked their prices by $40 for all lengths of appointment. Anyone been there recently who can say whether there is any difference in service?  Don't know if I'm allowed to post a link--I see no reviews for this agency.  

I doubt that there has been any change in service.  They are now the most expensive of the 4 PV locations near Tysons.  They typically have the most limited menus.  

Would that be the only legitimate reason for a rate hike?

I've been after the price hike and the service was exactly the same.  They're the most restrictive of the PV agencies, so I can no longer justify repeating with them.