I recently read an article about Macs being overpriced fan toys. I disagree that Macs are overpriced. Like the adage says.. you get what you pay for. Consumer Reports has recommended the Apple systems as their top pick in personal computers for several years running.
You want a better tool then you pay for the better made product. Has this built a fan base? Sure. Same goes for the ipod and iphone. The iphone 2.0 software will prove to be of far more use than 1.0 and will really give blackberry a run.
As for market share importance, yes you can't argue the bottom dollar in quantity of sales. Microsoft plays dirty pool and we all know it. They have bought out many fledgling products and ported them to windows. Take x-box's flagship game Halo. Bungie was a mac only company before Microsoft bought them and shut the game down for Macintosh. So X-box would not even be on the map if it was not for a Macintosh software developer. How many other countless products has Microsoft done this to?!?
Bigger certainly does not mean better. And personally I hope apple does not get too big in the next several years. Otherwise it will begin to be plagued by many of the problems Microsoft does and become a worthless paperweight that will sit unused on the floor next to my old compaq cpu.