yeah, they can definitely be a pain to renew every year, but business visa is actually the one which is meant to be used for people who live here, but don't have a job. So, I am using it for the past 1.5 years and no problems whatsoever. The problems will be caused if you use a tourist visa to live here all the time. Then yeah, they will just ask you why are you staying for so long on a tourist visa, you should get a business or a working visa if you want to work here. That's it. Other than that, no problems :)
If you don't want to work for a bit, getting business visa is the best. Cheers :)