I really liked the Tube for raising the bar on package efficiency. I can't think of a mainstream miner before the Tube that used so few non hashing board parts, or a miner that managed 800W off a single 120mm fan. Some didn't like the controllers and they were rather vulnerable to damage though.
Agreed, I wish more of the home-geared miners would have been created in that kind of DIY tunnel heat-sink design. It was very simple and effective.
Home and small farm-based mining would have (had) a better chance if we could re-use heatsinks, fans and controllers (not that the BE controller is anything to want to re-use). Even if the new chips are moving away from the bottom heat dissipating QFN packages, there is still a use for the frame.
