I can't see a limit to honey being very easy to reach, there's always more flowers out there, and if there's the demand then people will start more and more hives (I would think).
Also, many commerical meaderies offer meads that are frankly just awfull to most people's tastes, and once people decide they hate mead they're generally pretty stubborn.
the catch is one bad meadery stuffs it up for all of them. with wine a person will just not buy that brand again but with mead they will not buy ANY mead again.
That's a pretty complex question, and I can't answer why mead fell out of popularity in most of Europe over the last couple hundred years - and the fact that it's been "gone" so long is a huge part of why it's not popular now.
Also, pound for pound honey is about the most expensive type of sugar you can possibly ferment other than maple syrup (I'm sure a few others too). So pricing is a huge problem, though many meaderies have gotten the prices down (but as far as I've seen nobody's managed to get the price down on dry meads that require longer than a couple months of aging, and those are likely to be the ones to convert wine drinkers in my opinion).
Also, many commerical meaderies offer meads that are frankly just awfull to most people's tastes, and once people decide they hate mead they're generally pretty stubborn. Either the meads are too sweet, or spiced in an unpleasant way, but I have never met a single person who's had commercial mead bought in north america that's liked it. (Granted I'm tucked away in Canada where our mead selection is even lower, but seriously - every single person I've ever mentioned mead to that even knew what it was said "yuck, that stuff is terrible" (other than those who had it in Europe, even them said it was too sweet though)).
#1 thing is that people don't know about it because it's been essentially gone for the last hundreds of years. That's a huge hill to climb frankly.
Well I like some commercial Meads that I have tryed.
We need an association with a national platform from which a recognisable spokesperson can take the message to the people. Yes?