Try the 6N6π - it was this tube that led to the development of it's pulse-tolerant (6N6π-I, 6N6π-IR, 6N30π, 6N30π-DR) cousins - (the effort was to make them tough enough to withstand military use as power supply switching controllers. The 6B6π won't last as long as the others, but it will sound better IMHO.
You have to understand that once Komenko made a deal with Reflektor to buy out all the remaining stock of DR's, it was HE who started the hype that the DR is the only tube to have.
(Interestingly, since he started running out of DR's in 2009, he's now touting the 6H30PI as a "Supertube").
People like Lucas (Lampizator.com) and I have extensively compared both the 6N30π & the 6N6π. I find the 30 a tad "clinical" and the depth-of-field to be better on the 6. True, the 6 won't last as long, but they're quite affordable and (I think) more emotionally involving - of course, YMMV.