It would go out of business if they bank on infinite growth like most capitalists. If they plan to spend the first 5 years focusing 90% on manufacturing, the next 5 years are 40% manufacturing and 60% on servicing and parts, then 20% on manufacturing and 80% on servicing and parts, you can get over the startup hump and and settle into a sustainable business model. It's just not going to churn out endless profit to undeserving capitalists, year after year. But what it will do is provide stable, predictable income for a medium sized workforce while adapting to demand by reducing output. Sure the Labor component can be undercut by competitors at lower prices, but if done right, the parts market can still be yours. Anybody who is savvy enough to buy one of these products would also be savvy enough to pay full price for an OEM replacement sprocket instead of half that price for a dodgy chinesium sprocket.

If I knew I could get a washing machine that was garunteed to last 15 years and be repairable, I wouldn't mind spending a couple hundred bucks on parts and/or labor every few years.