I suppose you could justify the cost of building out a website for the local dry cleaner, but seriously, does that help it gain any new business? I doubt it.
If I just moved to a new town, I probably don't know where the nearest dry cleaner, or Thai restaurant, or carpet cleaner is. Rather than spend valuable time driving around searching, my first inclination will be to google it. If they get my business and do a good enough job, odds are I'll continue to patronize them for years. People rarely change service providers unless they move or there's a major problem.
- More than 80% of people search for local businesses and services on the web.
You better believe that where you show up in a Google search matters. The best way to do this is by owning your own website.