10,000 hits per month ain't hard. just do some links exchange and submit to directory. It's hard to get 10,000 per days (at least for me now)
I like to go au natural. Seriously tho, it normally is wise to spend $ to make $, as long as you spend wisely. Look at what other successful sites in your niche do based on their links in yahoo site explorer.
it is not easy to say how much money that will be spent on website . as a beginner , the less , the better!
I'm thinking he meant $10,000. To hit that income level I'd likely have to spend $100,000 (and would if it was guaranteed).
Depends on how much time you invest on your website. If you invest more time then money invested will be less. The less time you give then your site needs more investment because you will outsource many things.