The earphones that come with ipod's are actually pretty good quality to be honest.
That is an outrageous statement!
You must have a cup and string telephone or something to think they're good. I'm guessing you've never tried anything else.
And on topic:
They look pretty, like all of apple's stuff. Form over function. The people at Apple are clever, as they know if they make it look good it will sell, regardless of how many superior alternatives there are out there. I'm a function over form kind of guy, and I would never touch apple stuff with a bargepole. The quality is rubbish (but you'll still go out and buy a new one eh), the features are lacking, the interface is irritating, you look like a knob when you use one and you probably paid an outrageous price for it with no sign of any decent customer support.
I feel the same about all their products. I've even used the desktop pcs and found them incredibly irritating coming from an ibm based machine. Well, they kind of are that now.
The bottom line is, women (and most people who know little about tech or care more about looks) find the design nice. This is why women buy minis for example, even though at their price range there's always something much better available. I think they're dreadful, but they look nice to women it seems (and maybe gay guys).
I'm impressed at how well Apple have done for themselves, but I even find their adverts irritating now. I'm not an anti-fanboy keyboard warrior ****, but I see too many people buying Apple stuff for the wrong reasons.
My Mp3 player is still going strong, a toshiba gigabeat. I have both a 20GB and 40GB version, and now they can both play pictures, videos, lossless audio, loads of games available, fully skinnable to your needs and so on. I bought the first for the same price as an ipod photo (the first colour one) back when that came out. I still get over 10hrs battery too with mp3s. Best £180 I ever spent. Unfortunately, Toshiba withdrew from Europe with the gigabeat series because of the crazy market domination of ipods here. They're still available in the US and Japan.
Not quite sure if that was a rant, but something to think about. I'm sure your wife will love her ipod.