If you do a quick search on "SEO Consultants", you'll most likely see this kind of ad:
"We will submit your site to all 1500 search engines and guarantee you 14,000 hits on your first day for only $29.95!"
Sounds pretty good, huh? Well, don't be fooled. First of all, what 1500 search engines are they talking about? There are maybe 10-20, tops, that are out there, and out of those, you only need to submit your site to maybe eight (and that's even a bit on the overkill side).
Secondly, NO ONE can guarantee you that many hits. Just won't happen. No matter what kind of magical beans you have, you will not get that kind of traffic and especially won't get it on your first day. Sure, there are sites out there that get that many hits, but they are usually well-established, large sites that have been around for a while and have extremely deep content.
source: websearch.about.com