Many years ago someone figured out that people would pay for a toaster that lifted the toast once it was finished cooking. This prevented the toast from getting burned. Recently, someone else figured out that people would pay for a toaster that kept the toast warm until you were ready to butter it. The pop-up toaster was uninvented!
What has that got to do with helicopters? Nothing. You asked if there'd be a market for your helicopter. Considering the above story and many others like it, I wouldn't be surprised if there was a market.
I can't think of any use. If you could take a passenger on board, it might make a fun ride. Throttle chops from 30' are normally a six-ticket ride (my scale for how fun a flight is...based on West Edmonton Mall rides).