My parents never advertised their tailor shop, it was all "word-of-mouth" business. After the pricing jack-up, every customer got charged what my mother felt they could pay (with a very loose regard for consistency and some allowance for negotiation).
I used to think that was sketchy. It wasn't until much later that I realized that B2B enterprise sales people do that stuff ALL THE TIME even with their onerous kpi's, forecasting and fiscal quarter expectations!