Can someone tell me why there are two prices and what they're for? ?

Ok so I was looking to buy this laptop but on the right hand side where you go to buy it, it has base configuration: 649.99 and recommended configuration: 949.98. Here's the link, http://www.shopping.hp.com/webapp/shopping/computer_can_series.do?storeName=computer_store&category=notebooks&a1=Category&v1=High+performance&series_name=dv6zqe_series&jumpid=in_R329_prodexp/hhoslp/psg/notebooks/High_performance/dv6zqe_series