There is not much to it when comes to Betta care. As long as you set the tank up correctly (5+ gallons, filter, heater), and cycle the tank first before adding the fish. The rest is just daily feeding (once), and weekly partial water change. I don't see it as taxing on the Betta owner. It is the same as all healthy aquariums, the regular maintenance is only weekly. You can do it in 15 minutes.
It is also cheap no doubt. Two digits amount of bucks should take care of it. You don't need to spend more money until you run out of fish food or water conditioner. The rest is just to enjoy your fish. Totally worth it!
