If I'm understanding the issue correctly, I'm in the same boat.
I'd like to buy and use RHEL AS. It costs $1499 as an annual subscription,
No. It's $1499 for RHEL AS + 1 year support. Next it's $96/year subscription for rhn. http://www.redhat.com/software/rhel/purchase/ https://rhn.redhat.com/network/sales/index.pxt
Don http://onethumb.smugmug.com/