Back in 2006 the vinyl runs were still hefty as so you shouldn't have a problem getting your hands on anything you're after.
I stopped buying vinyl in 2009 when my daughter was born, about 2 years ago I started collecting again. Instantly noticed the huge change in the run quantities as rythmatix has mentioned, & how if you don't jump on certain stuff with a week or 2 you're shit out of luck. Classic example was late 2015, wanted that Sully EP that came out on Astrophonica. Didn't see anything else I wanted at the time so thought i'd wait a couple of weeks to see what else comes out so I wasn't ordering just one record. Next thing I know it's sold out everywhere & I'd missed out on nabbing one of my favorite releases of the year on vinyl. But the need for that vinyl got the best of me in the end, a few months back I ended up forking out $80 for a mint 2nd hand copy....