ipwn3r456 :
david germain :
chrome book could be a nice option. they cheap enough for a gift as well so you get best of both world.
In my opinion chromebooks are totally useless. You can't install programs on it, and plus, it's virtually useless without an internet connection.
Not for school their not. I have used mine in mostly offline enviroments for school for taking notes and it works. Granted your left with basic functionality in those area for notetaking, but your still allowed to view, edit, create documents with some functionality still in gdocs just not all the features at your fingertips.
Also having a $250 laptop with over 6.5h battery life which you get, creates almost no heat (best I got it to do is be slightly warm to the touch in a 2in area), no fan or moving parts so it's silent, feels fast due to SSD and lightweight OS, encrypted by default, rock solid security, about 0% maintenance. I guess you can say it "sucks" if you want to do something it can't do, but for the rest of us it's a good little laptop.
As for convincing them tell them the truth laptops are SIGNIFICANTLY weaker in terms of performance for the price compared to a desktop, especially a custom built desktop. Gaming on a computer is also generally cheaper if you know how to do it, which for me is steam sales especially the one around christmas as you can buy entire publisher catalogs for around the price of a single new game. Humble Bundles, and various other sales.
If their worried about space just build a micro ATX build, or something along those lines so you can use a smaller tower. You can easily build one while still maintaining good performance with a small profile. It just has some more limitations if you confine yourself to a small tower dealing with space, cooling, further expansion, and what parts can go in it. But still far better than a laptop.
Than there is the fact that in high school your surrounded by thieves, I had to watch my laptop like a hawk when I brought it back in high school. I had people even try to steal my $10 tool kit from me on several occasions in class just by walking in front of me and grabbing it hopping I won't notice, a laptop has a bigger "steal me" sign on it. In terms of actual use you get out of it in high school I doubt you really get any as most teachers didn't want you on laptops back when I went and preferred you take notes, and even in college a decent chunk of them refuse to allow students on laptops and rather have you do the old school pen and paper still.
If you can I just go with desktop now, and buy a cheap laptop/netbook/chromebook right before you start college. For taking notes if you prefer it that way, just know it's not a perfect system and doing a hybrid setup with typing notes and pen & paper for illustrations and referencing them in the typed notes and putting them in latter or something along those lines will probably be best. But also recommend it for cheaper ebook prices (though you can't sale them latter, and your basically rent them) so you have a lighter loadout for bringing with you to class, though I recommend you buy paperback books for your major so you have something to keep with you to reference latter on. Though a laptop for something like this can easily be done for $200-300, which oddly enough can pay for itself with price differnce in ebooks.