450 hits from the engines isnt really that much, a moderate listing on a decent term will do that. IE i get about 400 from a 2nd to third page listing for "blowjobs" or also get around 500 from first page for ones like "big facials", "cum facials", "hot wifes" etc. Allthough with proper pages you should be sending almost all those hits to the sponsor as well, the clickthrus will be better then any other traffic you have*(should)
And if your bottom of the page on results there is a huge diferance in traffic from the first result to the last result.
ALSO saying that not changing the page will make it keep its rankings isnt really reality either, there is many factors playing into the algorythyms (sp its 4am canada day
) and page content is only one of them. Yes you mentioned links as well, but some will stay and hopefully more will be added.
NOW im not knocking in ANYWAY the purchase, thats a great little investment, especially if you can build on the site, OR realise what was done to get those 450 hits a day and implement the strategies into the network you are building