Who's "we"? Anyone pouring money into any flying cars, electric helicopters, etc. at this stage is a fool. I'm certainly not contributing to any such projects.
It makes sense to invest in electric cars these days, since as Tesla has shown, they're perfectly viable (though a bit expensive still). Heck, GM proved them to be perfectly viable back in the late 90s with the EV1, except that too many entrenched interests didn't like them so GM killed it and crushed all the cars. You don't really need long range in an electric car anyway; 100 miles is more than enough for a commuter vehicle. It'd be nice if Tesla later came out with a smaller, cheaper low-range electric car expressly for commuters; I'd buy one in a heartbeat. I just got to drive a Model S and it's quite impressive, but I don't need that range for my ~15-mile commute nor can I afford those prices, but if there were a medium-performance two-seater with 70-mile range for $20-30k, that'd be pretty affordable and easily worth the money (when you factor in tax credits, lack of fuel cost, and lack of maintenance costs).
The tech's there for electric cars, but it just isn't there for anything that flies.