Don't forget that cartomizers are disposable. You can only refill them so many times--then they have to be replaced.
Ahem... Bottom of the pile? Hardly.
FWIW, there are many, many ECF vets who use eGos exclusively. There are also many vapers who prefer super mini batteries and are more than happy to deal with the inconveniences that come with that setup.
We are just less vocal than the big-bad-mod crowd.
If you like your eGos, enjoy them. They are very very good, they look nice, they come in pretty colors and in variable voltage, and you don't have to spend a fortune to own several of them.
Cheers and vape on!