Buying an Alembic.
The pickups and electronics are wonderful, but they are BRUTALLY ACCURATE: I heard ME making noises, fingerboard noises, all kinds of mulligans technique-wise that I simply never heard me doing on another axe. A lot of Alembic guys will cop to this, and the dang things will make you play better, just so you won't have to listen to all that racket.
Alembic pickups are like studio monitors: You hear everything, and any loose ends stand out right now. Other axes seem more like great stereo speakers with complimentary EQ curves built in. I love EMG's, and they'll love you back, but Alembics are like that great friend you have with NO filter that will say anything. Or like when you record yourself, hear the playback and think, 'geez I thought I sounded better than THAT' .
I loved mine, and even thought they're history, I'm a way better player for the time I spent with them. I'm here to tell you, Filters Will Set You Free.