I've been wondering about something for a while now and I'm hoping somebody has some insight. I have $100 to spend on link building and I obviously want the best bang for my buck. So which is better, subscribing to these mass link building services, or going out and trying to buy the highest PR and relevant one-way links possible? I forget the statistics, but I once read that a link from a PR3 site is = to 100's of PR1's, and so on. If thats the case, buying a PR7 link should blow away a linkwheel type system, shouldn't it? I'm sure scenarios maybe different for different sites, so maybe a little insight on my site might be helpful. Its over 8 years old, well indexed, on second page for most major keywords, I already have 1000's incoming links, most are small/nobody type links (leftovers from article marketing, blogs, comments and such). Thank you for your advice!