If you do link sell then PR will be more important for you. But if you are looking for the business and selling products, traffics are more important.
PR is just useful to show the importance of web page in numerical value. Both traffic and Pr are different. A good traffic is always better in SEO than PR. You can get better ranking by getting good traffic..
Traffic is what converts and makes you money. I've heard of some low PR sites beating out high PR sites.
Sales are the objective and therefore it must be Traffic. Traffic comes from high placement in the SERPs and content that someone is interested in.
Traffic has to be king. Google is the search engine of Relevance PR is only useful to its relevant Niche. Thats why you get a lot of PR0 sites beating PR5's for different keyterms
Traffic every time. In time if you take steps to improve PR you will have the traffic still, and a better PR.
more high PR more high your site listed in SERP but PR not always can guarantee amount of visitor... but if you want make money visitor is the most important thing than PR
If your site content is good means not copied and you are doing ethical seo to promote your site then your site PR will definitely.But PR will be increased after sometimes.The traffic will also increase and do not do any black hat technique to increase your traffic since it will not help you out for longer perspective. Since every one wants to increase the no. of quality visitor on his/her site.I think traffic is more important as compared to PR.