Same reason that people think that Chrome lock-in is okay and IE lock-in was bad; the new product is shiny and has good features. At the moment. Well, and you

Same reason that people think that Chrome lock-in is okay and IE lock-in was bad; the new product is shiny and has good features. At the moment. Well, and you gotta justify that 1 million $ investment (R&D + Costs) into your AWS architecture somehow.