Dear trianglezerius:
I don't mean you any disrespect, but $70 isn't much of a step down from the $72 Eurotubes charges. That and the difference in accountability between you and the company Eurotubes means that I think your tubes are going to be a tough sell. For example, we have no real guarantee that you haven't used the tubes more than 15 hours, which should be reflected in the price.
All this is to say that I really like KT77's, and if they were priced more reasonably, would have given your posting serious thought.
Respectfully,
Soren