Even if they do offer this to the small farm/hobbyist, I don't think this would be too popular. The resale value on these would be terrible, especially with that 3 month warranty. An aside note as well, I love building mining rigs myself. I love playing around with new computer hardware and being able to have it pay for itself and even make a profit.
Anyway, these really do only make sense for larger farms. If I was a larger farm with not alot of time to spare, buying prebuilt miners is the way to go.