I completely gave up on pick-ups several years ago. Got really tired of sound men destroying the whole performance. I also freed up 2 or three channels on my MP8 by doing so and put away a whole mess of wires & a pedal. Add to this, no more messing around with EQ.
Now my only problem is figuring out whether the instruments are reaching the back of the room since what goes into the microphone is exactly what comes out of the speakers.
You can get a decent "Shure" for around $150. Cheaper still on the Internet.
Mind you, I do think about an internal mike, once in a while but one for each instrument?! Naw!