As to your comparison to the TF10 - I personally find the TF10 inferior to the 2B, by a rather significant margin. It has nice bass impact but the mids are sucked out too much and the sparkle up top becomes overdone after a short period of time. No doubt they set the standard for a while but I think we have moved passed that by now. In my review, I did mention how the U shaped sond signature is hard to do right, because we all have different interpretations of how it should go. Sounds like the 2B didn't fit your ideal as much as it does for me. And that's ok!
As far as reselling and adding drivers as a better alternative.... That's a very hit or miss proposition. I notice how many of those custom upgraded models I see for sale in this forum. People spend big money on the upgrades and then move on to something else because they aren't satisfied. I'm not saying they can never sound good, but the success is by no means guaranteed. I'd much rather buy a purposely designed product myself.
Edited by project86 - 4/13/12 at 10:43am