What are good, modestly priced Blue Cheeses?
TJ's and elsewhere
I think I need more clarification on what you mean by "good," "modestly priced" and "elsewhere."
TJ's (or at least, the ones in my area) regularly carry Cambazola and Stilton. Cambazola is blue cheese for people who don't like blue cheese: very mild and creamy, with very little "blue" character. It's a good "gateway" blue cheese. Stilton is one of the classic blue cheeses, although many people think it's lost something since it's now required to be made from pasteurized (not raw) milk. I'd be surprised if TJ's didn't also carry gorgonzola and/or roquefort.
What's "good" depends, of course, on your taste, as blues run the gamut of mild and creamy to crumbly, salty and pungent. There's a whole thread on people's favorite blue cheeses to give you some ideas. The best option, as always, is to find a cheese purveyor that will let you taste before you buy.
Unfortunately, cheap cheese will taste like cheap cheese. I can't think of anything under $10/lb that I would recommend to anyone. I know that's going to come of as snobbish, but even poor quality cheese costs more that $10/lb.
Sorry, good cheese costs.
The only way I've been able to stretch my cheese buying dollar is by joining the shops newsletter list and being notified of sales. Right now Murray's Cheese (example) has a sale on a few I'm looking to buy. I'm going to be in the neighborhood Saturday and I'll nab what I can get my hands on while I'm there. Then, on the way home I'll get off two stops before my own and stop at that cheese cave. Grab a few specials there.
I expect to save about $35.00 in total just shopping specials while running errands.
Costco if you belong has a decent price on Blue. A little blue goes a long way-wait for a Mgr. special.