Just looking for a good reason not to download it even though it's free because of my recent purchase of a macbook pro.
It's free for 30 days. For those like you who purchased your qualifying Mac before the day Mountain Lion was released, the 30-day countdown starts today, July 25th. You have until Aug 24th to get your free upgrade. After that, it'll cost you $20.
We don't know when Apple will stop maintaining Lion, but that day will come. On that day Mountain Lion will still have about a year of life left in it. Think of getting Mountain Lion now as future-proofing, postponing the date you'll next have to deal with upgrading.
