I would probably click the one without the price (thinking I was getting a price list for free) Then get really annoyed to find it was trying to charge me $2.

I would probably click the one without the price (thinking I was getting a price list for free) Then get really annoyed to find it was trying to charge me $2. increase click rate? ... yes increase conversion rate ? inconclusive I bet they have the conversion result numbers but they either contradicted the story, or were weak results that showed the A/B test wasn't actually useful in this case