Also, Waves has really dragged their feet on making their plugins 64-bit compatible. I started with Pro Tools as well, and I don't know about now (they may have improved their plugin package some by now, I don't know), but when I started with Pro Tools, the included plugins were ... less than acceptable. So I invested in Waves Gold and have since upgraded to platinum. And I have to attest, there are some really great plugins in there. But, I like working in 64 bit. I don't trust the 32-bit bridge. Waves has been promising that the 64-bit versions are coming out "just around the corner" since late 2009. I did a search a little while ago (so there may be new info out there now), and still, the most recent thing I could find was an open letter to their customers, complaining that Apple didn't give them a heads up, and that they're working on it, but they have so very many plugins, and that to possibly look for it early 2010. And here it is 2012, and still no 64 bit version. So I'm way invested in a set of plugins that I never use anymore. The "we have so many plugins" excuse was fair and bought them some sympathy from me for a time, but now...2 years later?
So for me, Logic's own plugins are doing the job. I wouldn't drop any money into Waves until they update their software to operate in 64-bit.