Unless you want to be a "captive" SW dealer, painter, etc., there is very little they have to offer in terms of advancing your business.
Read or listen to the series, "Making Business Better" by Certainteed Corporation. Great ideas on how to increase your profits by putting more value on your work. I've used their Good, Better, Best concept for 12 successful years.
And, if you're a pro here, your work does indeed have value.
Michael