Take this? Raspberry Pi Zero? Well, actually, not quite. It really depends on what you want to do with your computer. If you need all those manufactured fancies of modern computers, sure, go with the upgraded models. But, if all you need is the pins on the edge to wire up to other things, a Raspberry Pi Zero will save you money.
20160302/http://betanews.com/2015/12/17/the-5-dollar-raspberry-pi-zero-is-too-damn-expensive/