I enjoy a good debate so I'll entertain your observations here. Ok so $40k is not a need, then what should all of us be driving then? 10k? 20k? is 25k ok?
Who's to say what is the right price, not to mention who is to judge what vehicle I or anyone drives that is not a need? Frankly if your not 100% debt free and paying cash for anything you own, calling out people for their spending habits is hypocritical.
Who is to say what's the price price? Who's to judge what kind of car I should be getting? Well, aren't there established formulas to answer that question?
If I'm making $25,000 a year, I could argue until I'm blue in the face that I NEED to be driving a brand new Ferrari, or that I NEED to live in a $500,000 home, but common sense and a little bit of financial knowledge should be proof enough to anyone that this is simply not going to happen. Of course, some banks got greedy and saw a way to take advantage of the situation, went ahead and offered those kinds of loans anyway, and you all know the rest of that story.
Determining what I NEED versus what I WANT is highly subjective, but determining what I can AFFORD is certainly not. You can easily put together the numbers and come up with a figure.
As for financing a Mac, be very careful: I got seriously burned a few years ago. I was a student making about $1000 a month, and I wanted a new 12" PowerBook, but didn't have the cash. Apple was offering "no payments, no interest for 180 days" through a partner bank, which I jumped on. Dividing the cost into 6 equal payments, interest-free, was something I was sure I could do! So I put together a sweet BTO system, and also added a copy of Final Cut Express, which was on special for $149 with the purchase of any new Mac.
That's when I discovered two key facts: (1) the fine print on the financing contract stated that the 180-days offer only applied to the FIRST purchase applied to the account, and (2) when you buy a BTO Mac together with boxed software, the software ships days before the Mac does.
That's right, I enjoyed 180 days of interest free payments on my $149 Final Cut Express... but the $2500 PowerBook (which shipped, and was charged, a week later) began accruing interest from day 1. At 28.8%.
To make a long story short, this mistake threw me into a cycle of credit card debt that I wasn't able to get out of until I graduated university and got a well-paying job, two years later. By then I had burned through all my savings and was taking minimum-wage jobs to keep afloat. I don't even want to think about how much that PowerBook REALLY cost me in interest payments.
If you want to finance, it's certainly your choice to do so -- just be careful and read the fine print.