I ordered from both Country Boy Gardens and Hosta's Direct last year and I was unhappy with both. Both have low prices, but their plants are much smaller than other online Hosta nurseries. I believe they are selling first year TC plants. That means their Hosta are at least one year behind those sold by Hallson, Made in the Shade, Naylor Creek or In the Country Garden and Gifts. Yes the prices are lower at CB and HL, but you will have to wait much longer to get a mature plant. I'm not saying that you shouldn't use these nurseries, just be aware of what you are getting for the low prices.
Steve