Using "Buy Now" Paypal Buttons, Pros or Cons

[hostingkustoms]

I'm going to use the site for mainly selling reseller hosting accounts, and more affiliate links.
When I set up different Hosting Packages, would it be better to place a Paypal button the description for each package, or use Paypal API code directly into the Admin section.
I need all opinons on this issue, tel me what you guys would suggest.