No, it's just come up in conversation mostly talking about race applications when fuel options are discussed. C16 has been around $17/gallon around here so people are looking at more alternatives.
You can buy it in a drum from rocket brand fuels. I've heard a 55 gal drum is about $200. Still cheaper than race but should be consistent. I've used rocket brand's 118 with good success so i would trust anything they make. As long as you know the percentage you're ok. If the ethanol content is less than 85%, then you may not be able to lean on the tune as hard.
$17/gal for race fuel is getting insane. We pay about $15 for c16 out here still. c16 eats my plugs which are now $3.50/each, racing gets more and more expensive. My ngk's are lasting a long time with this fuel....another plus. I switched over for the cost and availability. The rocket brand race fuel is 2 hours away, and I do not have a direct contact to buy it. The c/q16 is 50 minutes away and freaking expensive. The closest e85 pump is 15 minutes away and they are open 24 hours and its $3/gal