Reverso Mods - What's "OK"?

I recently purchased a Reverso GT Shadow, and funnily enough I actually picked this precise watch because of a modification it had and not in-spite of it.

You see the factory-original GT version of the Shadow had a blasted effect to the central part of the case, like so:




Mine has been polished aftermarket so that the entire case is polished (in the same way that the Reverso Classic Shadow was), and I really much prefer this look to the original blasted finish. This is a dealer pic of my exact watch, I don't have it to hand now:



This has been done faultlessly, and if you did not know any better you would - even on close inspection - think it was a factory original finish. I'm assuming it was done by a 3rd party, but perhaps someone here can tell me if it was likely that JLC themselves would have done this. I have actually seen one or two other examples of precisely the same thing, so it seems I am not the only one who prefers polished to blasted.

Now, with many watches I would tend to be a bit sniffy buying something modified, but with a Reverso it really doesn't bother me due to the fact that personalisation has always been sort of part of the point. I didn't even really expect to see any great reduction in price, and both the dealer and I were clear that we were both aware that this was a modification a the time.

So how do you all feel? Have you had your Reverso modified at all, or would you buy one that was? How much do you think about resale in the way you treat your watch? Do you think there is a line to draw with what is "ok", so for example engraving or enameling is ok but anything beyond is not? Finally, I wonder if modifications to a Reverso have less effect on value than for other watches where there is no great culture of personalistaion.

Attached Images