I'm tempted to be cheap and whine about having to pay more since I bought Reeder (this is what the App Store economy has done to us). This is the best RSS app for Mac and I use it on a daily basis. Silvio Rizzi has put in the work to create a beautiful application, which is not easy to do on the Mac. He deserves to get paid. Honestly he could charge twice as much and I'd still happily pay for it.