No worries - I did not think you were being petulant at all. It was a shame we didn't really finish there - I had hoped somebody else might chime in, it sort of fizzled out.
But in answer to your original question. Yes, you do indeed have something just a little bit special. It would be worth getting the stuck stopper seeen to. You could always ask the new IoW studio to make a new one for it, which would be the best way of fixing it - at least keeping it within the family as it were.
It depends it you want to sell it or keep it and how you want to go with it.
Signatures are trouble.
They're either impossible to read or potential fakes, they add absolutely nothing to the beauty of the glass but often add arms and legs to the price.
Pics of my bent cylinder. It's just a small thing, not one worthy of a pawmark, unlike your bottle.
(It was still very expensive, even in the secondary market, but that was before the recession hit.)