I'm seeing paid directories with some 3000 odd listings charging $20-100 bucks a link. Now these directories are usually PR 5-7 with PA DA in the 50's and up. However, I am seeing some PA DA 30, PR 2-4 Directories charging $10-30 and getting a lot of listings. Rather than targeting SEO brahs, what about making a hyper relevant sniper directory for a certain profession. One like medical where they know nothing of SEO and have deep pockets. Then charging $20 a link per year. Would this work. Potential Problems/Questions: 1) Driving Traffic? 2) Will Anyone Outside of the SEO world even search for a directory?