Selling links on PR2, PR3 and Pr4 websites

selling 5 spots on a pr4 website
payment only by paypal
1 month 10$
3 months 23$
6 months 44$
link sitewide with a lot of pr pages

pr3 - shopping related
1 month 6$
3 months 14$
6 months 25$
link sitewide

pr3 - webmaster blog with a lot of pr pages
1 month 7$
3 months 15$
6 months 33$
link sitewide

pr3 - templates related with a lot of pr pages
1 month 7$
3 months 15$
6 months 33$
link sitewide

pr2 - dating related
1 month 3$
3 months 7$
6 months 15$
link sitewide

pr2 - webdesign related
1 month 3$
3 months 7$
6 months 15$
link sitewide