Let’s suppose one of your users has a windows laptop and an iPad2. He wants to print on the printer connected to his Linux desktop. He has no chance of being able to do that without having you come over and edit his Samba and Cups inf files.
Now let’s suppose he has an IOgear wireless printer queue. It automatically shows up on his Mac and Windows machines. He (or you) might spend 20 hours trying to make it work with Linux.
Network printing is a necessity for the modern wireless home network. Linux is not ready for that, making it unusable for most home networks.
That would be valid in limited numbers in my case. I get older machines from Corporations and put them back into service in the homes of Seniors, Church goers and low income families. 99% of them don’t have another machine, let alone the money for an iPad. LOL
That said, I usually inform those who want/need a printer to buy a cheap one that is Linux friendly. Many print manufacturers supply Linux install packages for their machines. My Brother wireless MFC665CW, now some 6 years old, works flawlessly on 10.04LTS using the Brother supplied package and installed with archive manager. No editing necessary. So does my Canon Pixma.
I have 5 machines in my house all on wireless...Win7, Vista laptop, Dual boot UE 2.8 (Ultimate Edition)/XP, XP to big screen for Netflix, certain DVD’s, Camcorder, etc., and UE Lite laptop running from usb drive. In addition, I have 6 outside security cameras and a Personal Weather Station...again all wireless. No editing anything, all use a web interface, and everything I have except the Cannon printer is 4 years old or older. (usually older-lol)
Linux, specifically Ubuntu and Ubuntu based distributions are absolutely ready for a wireless world, and have been for several years. (yes, I know Ubuntu is Debian based, but not all Debian based distros are built equally)