If you look at it in pure financial terms, you will probably end up avoiding mac altogether. I've had many intentions of getting mac this and that, but always ended up getting something cheaper, though not necessarily better.
I think you need to ask yourself if you're willing to pay a little more in order to get Macintosh software and O.S. Because there are plenty of computers cheaper than any mac, and thats not likely to change.
All I know is, several computers later, and I still haven't kicked my itch for a mac.