False. Most consumer-friendly distros of Linux are no more maintenance intensive than Windows or OSX and are much more secure. Ubuntu and Mint, most notably, are designed with ease of use in mind.
I've had Ubuntu 12.04 running on my PC for almost a year and have have to do very little in the way of maintenance. A majority of hardware manufacturers develop Linux drivers and maintenance programs. I only use my Windows desktop for PC gaming. Otherwise, everything from email to web browsing is handled by my Linux box.
I think most people speak negatively of Linux out of fear or outright misinformation. Linux is useable by even the biggest neophyte, and I believe its market share will continue to grow over the years.
Ok do you want to try an little experiment? Let’s say you install the latest version of Ubuntu. And 1 year later they have had two upgrades.
How do you upgrade? How much time does that take? Oh and you’re using a brand new laptop with a docking station with 3 monitors and RAID SSD built into the laptop.