is there anyone who sells there old one and gets the new one every year???
I was thinking about doing this but most likely on a 2 year schedule, just wondering how many people do it and how they like it, or why they do it.
We all have our hobbies and things we spend money on, and for me it's technology. I purchased the Rev A, the Rev B, and the Rev D and Rev E models. I skipped the Rev C since it wasn't much of an update to the Rev B (which I had for 2 years). Let's face it. Upgrading every year gets costly, and Mac resale values aren't what they are made out to be, particularly for something like the MacBook Air, which changes radically almost every generation. On most of my resales, I netted roughly half the original purchase price (after eBay and Paypal fees).
I've always liked ultraportables, and I like having something new. My stated motivation for switching to the Rev B less than a year after buying the Rev A was getting a reasonably affordable (for the time) SSD and the faster graphics. It also addressed the Rev A's overheating issues (that thing stuttered a lot on video). That was a great little machine and I could easily have held onto it until now if I wanted to.
The Rev D took it up another notch and addressed virtually all my past concerns, apart from the CPU, and it introduced the 11". The 11" Rev E looks like a keeper to me (at least the same 2 years that I had the Rev B, and possibly longer). Sure, the Rev F will bring USB 3.0 and faster graphics through the Ivy Bridge (and possibly better battery life), but I think I'll hold out for Haswell or beyond. The new PC Ultrabooks will keep Apple innovating to stay ahead.
I used to do the same with cell phones, though that's been in fits and starts. I had a Sony Ericsson P800 back in the days (a really innovative phone that SE never really did much with), but then reverted to a basic cameraphone until 2007 when I purchased the Nokia N95 (deliberately trying to resist the iPhone). I later purchased the N85 and N97 but jumped back off the early adopter bandwagon after I purchased by Google Nexus One in January 2010. The Nexus One has been great and I've gotten every update to Android. I'll re-assess when the iPhone 5/4s comes out. If it's just a 4s, I'll probably hold onto my Nexus One for a while longer, but if it's a major step forward, I may take the plunge. The Nexus One has been good for me.