Bemused,
Based on the information on this site, Pureone filters are regarded as "the best" filters(both with large and very small particles filtration)in most cases. There are some reservations with regards to the flow restriction of these filters that do affect "some" of the cars (mostly valve clattering during start ups).
I recall a posting where they questionned the difference between an Oil Filter with a 96% multipass efficiency compared to a 98 % (as per SAE test). Intially you think,"not much", but in fact the 98% filter is twice as good as the 96%, since the 98 passes 2% of the dirt, compared to the 96 which passes 4% (i.e. twice as much).
Compare the specs on both filters and ask yourself if its worth the $3. Or from a bigger picture point of view, how can you get a longer lasting engine for only $3.