One note Jimmy, learn to appreciate what you have. You told the forum you just got rid of a perfectly fine Macbook in favor of the Pro and now you are only keeping this one for a year. Some of us can't even afford to replace our Macs more than every 5 years.
Your needs are different I'm sure but I see no reason to constantly change machines so often other than for bragging rights.
There's no need to be patronizing. Just because YOU see no need to change machines frequently doesn't mean that other people don't have a legitimate need to. And even if the OP doesn't, it's his money, and if he wants to spend it on unnecessary upgrades, who are you to tell him that's a bad use of it?
One more point - upgrading frequently is not as expensive as it seems. The reason is that if you sell a mac after only a year, you can get back a very substantial chunk of what you paid for it (75%?). On the other hand, if you keep a mac 5 years, its value will be a couple hundred at most, depending on how much it was to begin with.
I'm making numbers up here, but I think they're not crazy (based on my own experience selling a good number of macs), so bear with me. Let's say we have 2 buyers, each of whom buys a $2000 mac in year one. A sells each year, for $1500 (75% the original cost) and buys a new $2000 machine. B keeps his for 5 years, before selling at the end of year 5, for $500 (25%).
Year/A/B
1 - 2000, 2000
2 - 2500, 2000
3 - 3000, 2000
4 - 3500, 2000
5 - 4000, 2000
6 - 4500, 3500
So, with my admittedly BS numbers, at the start of year 6, when both A and B buy a new mac, A has spent $1000 more than B, and in exchange, has had the latest model each year rather than working with the same, aging machine the whole time. $1000 is not chump change, but frequent upgrades are not as crazy as it might seem.