[jeffreyrogers]

One of them costs too much for me to pursue. The other I'm working on as a hobby, but don't expect it to bear any fruit for a couple of years.

My main takeaway though is that an idea doesn't have to be novel for it to be a good idea. Lots of things that were tried and failed could succeed with a new approach. And lots of things that're currently successfully could be redone in a better way.