Just after I dropped the dollars on the Burr Brown too! 
When I modded my TS-10 a while back, I bought a bunch of opamps to try out and the Burr Brown was overwhelmingly my favorite. It sounded huge, with a lot of clarity. Whether or not you like the BB depends on what sort of sound you're looking for.
That said, I tried to make some recordings and the differences that I thought were so obvious were nearly non-existent after being recorded.
