Supply is going to be tight on those varieties for the foreseeable future. One of the first things I did when I decided to open a brewery was sign a hop contract for all the varieties I knew I wanted. We are about to open our doors next month (knock on wood), but I contracted for hops with two brokers in December of 2012. Still, I wasn't able to get everything I wanted. I ended up buying some hard-to-find varieties on the secondary market. Yes, I paid a bit of a premium for these hops, but it depends on how important a particular variety is to your beer. For me, I had a very specific idea of what hops I wanted to use. Hopefully, it will be worth it!