How am I incorrect? I have both Mac & PC and I've went on them both and Mac is better overall even though PC has a lot of awesome software that Mac doesn't have (or at least doesn't have a good version of it) PCs can easily get a virus while it's hard to give a virus to a Mac.
In a way I sort of agree with this.. it's not that it's easier, per say.. but I feel like Mac customer service is leaps and bounds above windows. Especially if you are bringing your computer to another country and need it to work- if there's an issue there's always a number to call. And they have always either fixed my problems within 30 minutes, or got me a replacement part in a matter of 2 days.
With windows you may need to ship it out and the process can take even up to a month or two! Not good if you need the computer for work!
I think there is more software available to PC but that is changing. And Lion is a little shaky right now but it should have updates and patches soon. Apple is pretty good about doing that.
BTW I personally don't think a MBAir is worth the money. It may be much more worth it to you just to get a pro or a mac.. perhaps you can also look into a mac-mini if you want to build.
Overall you just need it to cater to your needs. And if you're getting a mac, then get applecare. Also, please realize it's harder to rip programs for mac in certain cases.. and you may need to get used to some shortcuts (command, shift, 3 is a screenshot, for example.) And you'll need to grab programs like MS Word separately..
And how are you with change? Can you take it well?
I have a mac and a PC, and one I use for my work and the other I use more for recreation. I personally prefer mac due to it's ease and interface.. and sometimes PC can make me frustrated because it may not always be a straightforward solution. I get angry easily when something doesn't work perfectly on my computer, so when it happens to me when I am on my windows PC then I tire so easily and I don't want to bother with it anymore.
There are a lot of factors. All I can say is go to the apple store and try some out if you can. They have sessions you can book to get more of an understanding on how to use a mac and that may help your decision.
Good luck!
BY THE WAY..
Msn for mac sucks.. i use aMSN.. it's an MSN clone but I prefer it to actual windows live now. No adds.. completely customizable.. even all the icons. Some skins are absolutely gorgeous. I recommend it. Also skype is tons better on a mac than a pc.