Speaking as someone who actually purchased a turntable today (a cheap Technics for my dad for Xmas), I'd say your dealer is half-right. Most of what's keeping turntable manufacturers going these days is boomers (and older, like my dad) who have record collections they want to play, and that market is going to shrink over time, for obvious if sad reasons. OTOH, there will always be an audiophile niche, and companies willing to fill that niche.