Its not about going out and buying a laptop for tournaments. Its not about everyone already owning a laptop. Its about me (and others) not wanting to put my $1000 laptop in a huge venue and have a million people playing on it only for me to go to the bathroom, come back, and find out its been stolen. Go ahead, steal my $5 crt, but a laptop is much more valuable. Unless you want to redownload the fappening for me, I'm not losing this bad boy.
And even worse, with windows 8 when your computer has updates it won't even ask you if you want to wait to download and install them. It just tells you that its restarting and you have 15 minutes to save yourself. If you close out the message and ignore it, 15 minutes later your whole computer becomes unusable for almost an hour.