Ahem ..... I fall into the "older" guitarist category and I can never remember weight being a major factor when choosing a guitar up until the last 10 years or so - if you were looking for a Les Paul you accepted it was going to be heavy - if you were looking for an SG you knew it was going to be lighter, so I would tend to agree with Mike Eldred.
I'm old too. OK, I'm not a "proper" guitarist, I'm rubbish and I've never been in a band, but weight has always been an issue for me - maybe in the past I'd only think about it in retrospect, when I'd buy a guitar and find it too heavy, then get rid of it. Now I think about it in advance.
Gotta be honest, this is one of those "I can't understand why we're disagreeing" topics for me. :?
If you wanted, let's say, an LP and found two which looked, played and sounded
identical - but one was 8lbs and one was 11lbs - would you not pick the lighter one (or the heavier one, if thats your preference)?
We're talking about something which costs 100s or 1,000s of pounds, something made of wood so no two are ever exactly alike. We all have personal preferences in terms of sound and looks - so why is it (apparently) so weird to have a preference in terms of weight?