Perhaps it's yet another sign that photography is not the vibrant beast that it used to be,
From the pro's point of view, maybe it takes too much time to travel there (or to any exhibition), time better spent chasing clients. Anyway, I'd imagine that the reps would already be doing all that they can to reach those pros still in the buying market and inform them about everything that they can sell to them...
For amateurs, if you want to combine it with a holiday, maybe you go to Germany now and then instead.
Looking at what I could discern about the demise of my island wholesaler, the head office in Barcelona closed them down because the huge fall in film and paper stocks, as well as of colour processing chemicals, made their presence pointless.
As for the Internet... it kills off pretty much everything once associated with bricks and mortar. Count your local cameras shops today.