Kind of curious how many people are using a laptop as their main computer. To me, they seem like the perfect minimalist systems: Just the essential features, low-power, small size, etc. Sure, they aren't silent, but most are very quiet, quiet enough IMO, although I may not be quite as picky about noise as some here.
Of course, there are downsides. Many of the components are proprietary and not easily servicable, so if something fails you'll have to send it into the manufacturer (and pay a rediculous sum if it's no longer under warranty) or spend hours hunting eBay for the part and later installing it. Same basic deal with upgradability (although newer laptops do make RAM, HDD, etc. easy to access, maybe future laptops will even have CPU slot to make this upgrade easy as well?).
What's everybody's $0.02 on this? I recently replaced my desktop with a 12.1" Sempron notebook, and have been pretty pleased. Although I don't move it around much, the ability to easily take it to the library, a friend's house, etc. is nice.
I finally got a company laptop myself. It's a great machine and actually has a far more powerful cpu than my personal desktop. However I definitely would turn it into a pseudo desktop if it was my main machine. Which means docking station and 1-2 large lcd monitors/external keyboard/mouse.
I think the main issue is you can't stick huge amounts of storage in a laptop and you can't use a high end video card unless you get a very expensive(read heavy) one. A desktop just provides a lot more features that a small size can't give you. There is a solution to the storage issue with a sexy infrant readynas nv+, but that's $600 empty and the performance of NAS isn't as good as direct SATA/ATA. That's one thing I badly want, but the price isn't right.
Bottom line to me: Laptops are awesome secondary machines.