Which one do you prefer and why? I need an app like this... leaning towards Read It Later ($3) over Instapaper ($10) mainly because of the price. RiL has some bad reviews, but I think most of the issues will be corrected with time since this is a relatively new app. Instapaper seems way overpriced to me.
http://appshopper.com/productivity/read-it-later-pro
http://appshopper.com/productivity/instapaper-pro
http://appshopper.com/productivity/read-it-later-pro
http://appshopper.com/productivity/instapaper-pro