Here is the JBP I bought from George last year for around $125, and I've seen bigger/better JBP from him at our club meetings. I suspect his eBay prices are a little higher than Al gets. It will take a while to develop the apex, it has potential to be a nice little shohin. Each of the 5-6 trees I've seen from George have been very well cultivated. Good branching, great root system that has been worked on, and TINY needles!
@ Nip: George told me through email that all of his JBP are Mikawa; his aunt(?) sends him seed from the Mikawa area. Mine is too young to tell by the bark, but the needles are a little fresher green in color than my other JBP, which is a characteristic.
On Evergreen: I haven't met Brent, but I feel like I know him from buying 8-9 trees and communicating back and forth. I'm sure he has great stock at the nursery, but online, I see Evergreen as a place where you can get nearly any species, variety or cultivar that you read about in the books, propagated expressly for bonsai. You just need to be ready to grow it out for a while to have bonsai material. Named cultivars of Cork Bark JBP, JWP, or Ilex serrata for examples can be difficult to find (for me).