Personally I don't have to keep track of them

It's all done for me, I just save each session with a date tag, and after the last article I delete the text file for that session.
Several thousand titles for the blog is easy... I write generally 20-25 titles and spin them into each other, takes like 10 minutes really.
Well I personally do almost 90 web 2.0s, and then do a lot of manual PR5+ blog commenting (only d0follows), then throw in a lot of pyramids on top of the web 2.0s
I have seen no indication that high PR blog network >>>> lots of high PR web 2.0s
Once you start topping 3000-4000 high PR web 2.0s you realize that they have the same effect, or nearly so, of the same amount of high PR private blog network posts.
Lastly, I'd take 5000 links embedded in related content with 5-10 million links pointing to those pages at a place like yahoo.com over 50,000 unique IP homepage links.
To me, SEO is all about what I can do without having to pay some knucklescraper $2/mth for a homepage link... by the thousands.
The better you get at generating google loved links, en masse, for free, the more competitive everything you do becomes. It's pretty hard for someone to keep up with you if all they're doing is shelling out $50k/mth on homepage links and you're generating 60-70k web 2.0s/mth