Note that at this point in time it is economics, not yield-per-area that dominate any solar cell installation so a new cell doesn't necessarily have to be high yield, it has to be better when you compute total power generated for a given $ invested over the lifetime of the cell. That's pretty much all that matters, everything is just a distraction unless you are severely space constrained a couple of percent more or less isn't going to make a huge difference, and cost savings on existing processes have now compounded to the point that people are more and more looking at the price of inverters and installation as important factors. That's also why you see the push for transformerless inverters (those are bulky and costly so they affect both inverter cost and installation/shipping).
I did a pretty big solar installation over the last two years and I decided to go for quality panels because the glass-glass sandwich panels have a much better economic picture than the glass-plastic ones even though they are more expensive up front.
I did a pretty big solar installation over the last two years and I decided to go for quality panels because the glass-glass sandwich panels have a much better economic picture than the glass-plastic ones even though they are more expensive up front.