I'll chime in, as I live right in the middle of all this.
First off, I would avoid all the Pure Hockey's within reasonable driving distance, with the exception of the one in Marlboro that is considered an "outlet store". This isn't a knock on Pure Hockey at all. Its just they are pretty much all the same, and never really offer anything tangibly cheaper or harder to find than any of the others. The store Marlboro is pretty solid, and you can find a lot of discounted retail offerings. Not a ton of pro stock stuff though. They do have a ton of lefty sticks always on clearance.
The Hockey Monkey in Norwood is huge. Its generally a pretty good place to find clearance retail sticks (both left and right), in a decent array of flexes and curves. They pretty much have everything at retail level you could possibly want here. I never have much luck in regards to pro stock anything though.
When I make the trip to Hockey Monkey, I generally always drive a bit further (5-7 mins) down rt. 1 to check out what Play It Again has in stock. Its very hit or miss. Massachusetts being a hockey state, a lot of stuff seems to find its way into this store from places overstock. Its very hit or miss. However, when you hit- you hit big. I've found a lot of sought after stick models here in new condition, and incredibly cheap.
TSR is a must checkout. As others have said- its worth the drive to check it out. Grear store. Not much I can add to whats already been said.
However, I would start my search for sticks at the pro-shops at the Foxboro and Walpole rinks. Each generally has some great sticks for very good prices. Each will have a decent amount of pro stock sticks. Generally a lot of Bruins players. However, a bunch from the guys that frequent those rinks in the offseason. All the MA associated guys (Eichel, Yandle, Vesey, Hanafin, Hayes bros, just to name a few off the top of my head) all play there a few Wednesday's in the summer.
Hope this helps.