Well yeah, when you think about it, I do a ton of online business so it would be nothing to buy a case.
The problem I have is I just can't see how it's any better than comparable oils, such as mobil 1. I have pictures from a few months ago whe a buddy and I opened up our high mileage 5.3's. Same year truck, almost same mileage, but I used mobil 1 and he Dino. The difference was amazing, my internals were spotless, especially when compared to his.
I'm sure amsoil would be the same, but it's just not enough reason for me to switch. Another thing I can't get over is the mileage warranty.
Call me crazy but I change my mobil 1 and filter every 4-5,000 miles, regardless. No way I would ever feel comfortable running any oil past 10, let along 25k miles.
I'm not bashing the product, just voicing my thoughts. On why I haven't switched yet.