This is your words. "I bet I get as many days of sunshine where I live as you do, and the math doesn’t work out." Show me the math that says my panels don't work out. You can't because it does work and it works for lots of other folks who have actually done the math and actually have personal experience with them, with or without the tax credits.
You make a few solid points, actually you're more like a cheerleader standing behind another guy who actually engaged the conversation and added quite a bit of good intel. Only one time did he feel the need to comment on the dead horse. Seems practical does it not?