It's amazing when you keep pushing, even when it feels you are going no where.
Row, Row, Row your boat to No, No, Nowhere! Post cards, letters, newsletters over and over with very little response. Do you know the old saying, "If it ain't broke don't fix it"? Well if you are spending thousands of dollars monthly for marketing and no return, you need to FIX THAT. Re-evaluate your marketing strategies and talk to a marketing expert. You may be on the right path, but applicable guidance can get you where you need to be to see results.