Actually, if this winter is any indication of what the spring and summer are going to be like and if you are really into nice brook trout (by PA standards anyway), I'd give some consideration to the NW corner of Michigan's Lower Peninsula where you could jump around sampling a bunch of nice systems like the Boardman, the Platte, etc. and then head across the bridge to the UP and go up and fish the Fox and then work west and fish the upper portions of a couple of the branches of the Escanaba as well as the Iron River and SB of the Paint and as many others as you have time for. You could have a really nice trip for considerably less than a quarter of what it would cost you to go to Labrador or Ireland. Beautiful country, nice people, good food and lots of decent sized fish.
The only catch would be that you'd need a slightly cooler than normal summer to hit the best of it and you'd have to do a bit of stream choice research to be sure you're fishing places with good spring input. Its kind of a patchwork up there in this regard. But even with this in mind, there are a pile of good places and the pressure is pretty modest (again by PA standards).
This is what I'd do and bank the money I saved. Then again, I'm cheap and don't really care that much about trendy destinations...