Re: Les Pauls with Bigsby's - a few questions
They do look like monstrosities and for the little that they do, it turns a lot of people off. And yes, they are finnicky in terms of tuning, returning to pitch, how they alter the tone of the guitar, etc. Yet, some people think they are so ugly (in a retro way), they actually are attractive on a guitar and swear by them for exactly what they were designed for. Some don't even use them at all, they just like them being there. And, are most conscious of not using it in order to maintain the stability of the guitar.
I've had many a guitar with a Bigsby. I always would say to myself that the Bigsbys looked great on them (call me crazy). I do remember quite clearly though, always saying to myself after I had run whichever guitar through its paces, that I wish it DIDN'T have the Bigsby on it. You can also see by it's performance that a Bigsby does stress the bridge and the nut causing accelerated fatigue to both as well.
Unfortunately, removing a Bigsby leaves unwanted holes and imprints from it and naturally, to the purist, reduces the instrument's value, especially when additional holes are put into the guitar for a stop or whatever replacement tailpiece.
Not to go off on a tangent here, but the only other 'pedigreed' vibrola device I've ever found to be worse than the a Bigsby is/was the Gibson one. You know the one: Like on the older SGs, some Melody Makers, etc. I've found that just by bending strings on those Gibson equipped models, it'll knock the guitar out of tune. Again, here too, some players want them. I guess it all boils down to, "To each his/her own."