Have you thought about taking group classes? They are much less expensive than private lessons.
Where I live, private lessons cost as much as a private session with a personal trainer at the gym, or a massage. Lots of people have personal trainers and get massages, so I don't see the private lessons as being too out of line where I live. Quality individual attention and instruction costs money, no matter what the field of endeavor.
Group classes are much more economical. If you want more individualized attention at a lower price, you might see if you can create your own "mini-group." Some teachers I know will take two to six people (usually wedding parties) all at once, and the students just split the regular hourly fee.