$9.20 plus tax and shipping.
I buy it by the gallon as I have four bikes. Just got one yesterday, $36.06, with tax and shipping it was $49.05.
My Dealer Number: 1185580 Please feel free to use it for a referral number if you order online and purchase the Preferred Customer option for dealer pricing.
One of the things I really like about Amsoil is they try very hard to formulate a lubricant for virtually every application. Powersports, vehicles, equipment, racing, they pretty much cover everything. Some guys don't like the MLM distribution concept and their cheezy marketing, but no one has ever said their product isn't top notch.
One of the main reasons to use a full synthetic oil is just for the reason Jake explains, where he almost burned up his bike. A synthetic offers much greater protection in the extreme. Mobil1 is, as far as I know, one of the few others that are formulated on a group IV base stock. Most of the others are not so you're not quite getting what you think you're getting. And it's cheap if you can buy it at walmart but of late I have not seen the heavier weight oil we use. Rotella and Delo are also very good conventional oils, and a diesel oil works well in a motorcycle engine. Yes, change often with a 1 quart capacity. The rotella syn is a group III base, it's fine, it's just not one of the best. But it's a good price and easy to get. Just watch out for that jaso rating which is important for good clutch action.
Spectro is a middle-line oil but it is high in zinc which is a very good anti-wear additive and prevents shearing from the gears meshing. Some of the euro oils are good but you're paying a premium for forumulating and packaging and shipping from Europe - so what's the point? Just to say you use Motorex, Motul, Agip, or Repsol? They are all really good product for motorcycles, no doubt.
Here's a whitepaper on the unique requirements for a motorcycle engine and testing that Amsoil did with their product and several of the others we've discussed. It's 26 pages but worth a read if you're really interested in hard facts. Download PDF:
http://www.syntheticwarehouse.com/brochures/motorcycle_oil_study.pdf
EDIT: I just read thru this OIL STUDY whitepaper as it has been a few years since I've seen it. This is an updated test from 2009, and I was quite surprised at how thorough it is and how clearly Amsoil Motorcycle oil is superior to them all. Frankly, I don't know how one can read through it and not come to the conclusion that it's the best choice for our purposes. When it comes into the middle of the pack price-wise, it's just a no-brainer. For me, it's just not a difficult desicion to make. I put too much value in the performance and longevity of my prized motorcycles.
BTW, for the Mobil1 advocates, at least get the 4T motorcycle-specific product for your machine. Otherwise I think you're missing out on some of the key differences in formulations for general automotive specific lubricants and motorcycle specific ones.