Might as well be. They try their best to cover it up, but if you pay attention it's clear as hell. Different cities but every hotel look the damn same

It's only 4 people that get top priority - Sam, Dean, Castiel and Crowley. Everybody else

gotta keep that budget low.
Even with The Vampire Diaries. Last season was pretty rough. Even though they didn't kill off a lot of characters, in order to keep that budget tight, a lot of characters didn't show up for sometimes 2 or 3 episodes and using one or two locations for the majority of the episode.