Good point, but of course there are other trade offs.
Absolutely, but I was speaking more in the context of the Arizer Solo itself. There are not any tradeoffs that manifest itself in the user experience; I'm not trying to say that these cells would be ideal for any application.
There always are. There is no doubt a reason why all the makers are using batteries like are used in say laptops, not electric cars. Tenergy (the maker of the pack used in Solo) also sells packs for similar uses, also using the same 'sub standard' 2200 mAh cells. In a capitalist world if it was as simple as using the 'better' battery no doubt some of the makers would to take advantage of being able to advertise longer run times?
Well what it really comes down to is cost. These 2200mAh cells have been in production for a long time, with many well established players in the market to drive down price. Quality 2200mAh cells can be had in volume for less than a dollar each.
Now compare this to the cost of a single NCR18650B cell; and your looking at a several hundred percent increase at volume rates. There is also only one manufacturer of them, and several massive companies who are eating up their supply chain like nacho chips. The demand for these cells are very high, and the supply is low. Capitalism is indeed at play here, and is why this cell has been overlooked in favour of more economical solutions that are 'good enough'.