Trimbach aims for dryness in all the non-late-harvest gewurztraminers. They still, generally, achieve it in the Ribeaupierre, which comes from cooler and well-sloped vineyards better known for their steely riesling. The yellow label...well, consider that potential alcohols are coming in at Carlisle-like numbers and higher, and so faced with a choice between flaws they're making off-dry (and still boozy, no matter what you read) wines in lesser years, off-dry and balanced-boozy wines in better years. But that's just the yellow label. They'd still make it dry, restrained, and austere (for gewurztraminer, that is) if they could, but climate change isn't really encouraging that anymore. It's still about the driest Alsatian gewurztraminer there is, save Beyer, and the Ribeaupierre may be the only regularly dry and regularly good gewurztraminer left in the region.
But, as you see via Mr. Lawton, that's no path to universal acclaim. Some feel that the grape really does need residual sugar, and I can see both sides. Me, I like what happens to aged dry gewurztraminer, and I like powerfully sweet, rich, and decadent gewurztraminer. I don't like aged off-dry gewurztraminer, as a rule, because I think it turns sickly and disjointed, so I try to drink that young.
The Ribeaupierre ages for 10-15 years in decent vintages, perhaps more if you like it to be a certain way, less in lesser vintages or if you don't think gewurztraminer should taste like rose and old jerky with a fair slap of acidity (believe it or not). I do age some of the yellow labels, but nowhere close to as long as Mark just did. The 2001 and 2002 were both falling apart, last week. I'm up to 2004s now, and they're still fine.
If you're still in the market for dry gewurztraminer for under $40, probably best to look elsewhere. Italy, New Zealand, maybe somewhere I'm not thinking about at the moment.