whats with everyone wanting to mine? just buy it and hold onto it, and you`ll be in more profit then the miners.
A lot of people who are new to Bitcoin are attracted by the fact that you can create wealth by letting your computer perform arithmetic calculations. It's interesting, effectively money for nothing. They also don't get that the difficulty increases exponentially and therefore assume they'll get thousands of USD every month and will be millionaires in a few years time.
What makes the problem worse is that, they can find some out of date mining tutorials and analyses, in which they can get a lot of bitcoin using just ordinary computers and USB miners.
There are also still tutorials or summaries of Bitcoin that suggest Mt. Gox as a Bitcoin exchange, which obviously isn't a very good idea nowadays! The basics stayed the same, but the whole ecosystem is moving so fast that things become obsolete practically over night.