This forum has been flooded with people for months that have advised getting a Phenom II/AM3 combo and upgrading to Bulldozer later instead of getting an I5/I7 because they're on dead end sockets with no future. In fact, most any thread where the OP asked the question Phenom II or I5, the drop in Bulldozer cpu was usually mentioned.
There are also a number of people that falsely claim buying a Phenom II X2 555 will almost always result in a working quad core too, and they recommend them over Athlon II X4 processors for people who have clear use for quads. Different thing, but still AMD fan boys misleading people.