Healthy bit of Linux bashing going on here.
It is widely recognized that Linux servers are more secure and stable than other platforms
As for lack of support thats laughable
Red Hat
http://www.redhat.com/
Red Hat Support
http://www.redhat.com/support/
SUSE Linux
http://www.novell.com/linux/
SUSE Linux Support
http://www.novell.com/services/
Ubuntu
http://www.ubuntu.com/
Ubuntu Support
http://www.ubuntu.com/support
There is solid evidence to show that the use of Linux is growing albeit slowly. Five years ago Linux use sat at around 0.4% in comparison to todays 1.1% and there are thought to be around 12 million Ubuntu Users alone (many of which are servers)
Companies make concious decisions when it comes upgrading or changing there software so that alone should speak volumes.
The Perfect Server - Ubuntu 10.04 [ISPConfig 3]
http://www.howtoforge.com/perfect-server-ubuntu-10.04-lucid-lynx-ispconfig-3
Moving on to the Desktop Environment. True there is a wide array of distros. available but they are not all hard to use.
Distros. usually break down in to three categories
Beginner (example Ubuntu)
http://www.linuxmint.com/
Intermediate (example Fedora)
http://fedoraproject.org/
Advanced (example Gentoo)
http://www.gentoo.org/
Distros. such as Linux Mint have most of the software you are likely to use preinstalled and can be run straight from the LiveCD (including Compiz)
http://wiki.compiz.org/
For running from LiveCD I thoroughly recommend Linux Mint 8 (there are known issues with running Compiz LIVE on Linux Mint 9)
Linux Mint 8 Download
http://www.linuxmint.com/edition.php?id=44
Linux Mint 8 User Guide pdf.
http://www.linuxmint.com/rel_helena.php
Yes the likes of Ubuntu and Linux Mint do release upgrades every 6 months however you do have the choice of working with an LTS (Long Term Support) release. These generally come every 2 years. Desktop support lasts for 3 years (Server 5 years)
Current latest LTS releases Ubuntu 10.04 and Linux Mint 9
Ubuntu 10.04
http://www.ubuntu.com/desktop/get-ubuntu/download
http://www.howtoforge.com/the-perfect-desktop-ubuntu-10.04-lucid-lynx
http://ubuntuguide.org/wiki/Ubuntu:Lucid
Linux Mint 9
http://www.linuxmint.com/edition.php?id=52
http://www.howtoforge.com/the-perfect-desktop-linux-mint-9-isadora
http://www.linuxmint.com/rel_isadora.php
I could go on but suffice to say your argument in all areas does not stand up to the FACTS !
LUg.