I think people still associate riesling with the horrible "moselles" their parents drank. All of those were pretty much traminer riesling monstrosities that have turned many off riesling I've found. It's a shame, because even proper Germanic Mosel is not a sweet riesling, really. It's got a lovely full bodied, sweet mid palate but a dry finish...and Clare Riesling is as dry as you'll get anywhere in the world! People just have an associated memory that stunts riesling sales.
I'm the same, I love a dry riesling and I think if people tried them then most would. To prove a point, today I put a local one on tasting. Mt Majura, 96 point Halliday riesling from a 5 star winery. I sold 17 bottles, blind tasted, and most non-wine people were shocked that it was a riesling! Canberra riesling isn't even all that dru, especially when compared to Clare...it's a rich, pure, limey, slatey version that I personally love more than any other