Mind boggling, the games cost 60 for the AAA stuff anyway so if $40 (god knows where that would be from, my 10kMAH pack cost me €10 ) would be a deal breaker for you then maybe the system just isn't for you.
That vitaesque shaping of the system doesn't factor in the obvious increase depth required for a second set of shoulder buttons... and again the fact that you are looking for a machine with even more compact tech than it currently has while increasing the battery life and reducing the cost so you could afford it still, simply put your issues with the Switch can't be solved by Nintendo.
for info, games like doom can last around 3 hours without wifi and lower brightness settings, all the way up to the port of the ps4 disgaea 5 on the system which can give you over 7 hours from a single charge... again thou, do you go for 3 hours in a day without going near a usb port or wall socket?.... do you go 7 hours?
-Depth/thickness isn't a big issue for me, I carry around my smartphone in my front pocket, and it's wrapped in a Defender series Otterbox case that is 16mm thick (joycons are 19mm thick at the widest point caused by the triggers).
-Of course it's an issue Nintendo can solve. I never said I wouldn't be willing to pay $300 for a Switch Mini if they released one, I said I found $300 for the current Switch model steep given it's not the ideal system for me. Yes, a smaller unit would have a smaller battery, but that could be offset by switching to the 16nm Tegra X2, meaning that a Switch Mini using a Tegra X2 would get around the same battery life as the current Switch or maybe even a tad better. I could live with 3-5 hours battery life as long as the size was right, obviously more would be better, but 3DS XL was about 3-6 hours.