Best bang for buck? No-pun!

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!

For an 8 year old site that you don't want to burn I would buy high quality text links with good and varied anchor text. However $100 isn't going to buy you that many quality links.

For a shittier throwaway site I would buy a mass crap link building package or invest in software.

buy a program and learn to use it yourself.

Yeah, I think you're right about this. I'm hoping this site is my future, used to live off it before, but have neglected it for other projects. You're right, $100 isn't much. I don't mind spending $1000's as long as it pays off.

Any other advice guys?

I agree with supamanjon, learn it yourself. You will have much more control over your campaigns by not having to rely on someone's service for you to operate.

I definately understand what you mean by, "learn it yourself." And, actually I've have done a lot of the volume link building techniques. From what I recall, after I did lots of that, I spent a few hundred on higher PR links and next thing I knew, I was floating around 3rd-5th place for a major keyword with 15M results. So my lil theory is, is that spending a little bit on good links might be better than buliding masses of PR0-PR1 links. But, please correct me if I'm wrong because I cannot be sure.

You can get good results by using both methods. Building your own links by spamming is ultimately cheaper but a lot riskier. Buying links is fast and easy, just as long as they're not obviously paid links.