BC pipes have one thing going for them: actually seeing the items zoom about in the pipes is a great. And yes, TE ducts did that too, but the duct texture was so clumsy that you could only see half the item, and in the accelerated ones even less.
Ender Rails are sadly disabled. @Jason McRay don't you think these could be left in (with a suitable recipe), as they are the most interesting teleporting option and encourage more use of rails + railcraft?
Always explore all the NEI tabs when looking for recipes. Many resources in GT have multiple ways to get them, usually with differing material efficiency vs. preconditions.