Re: I'm not surprised...
"I'm still waiting for printer manufacturers to develop printer drivers for Linux!"
I'm suprised. I've had 3 lasers (Epson, Brother and Samsung) since ~1998 - all worked with Linux without any issues. I also have a second-hand, cheap Epson inkjet scanner/printer which also works without any probs.
"as it's getting easier to install applications in Linux (still a bit of a ball ache though, compared to windows)"
Don't recognize the problem. For my distro of choice (OpenSUSE) just select from the vast array of progs in YAST2 GUI and install as many as you want in 1 go or from SUSE software webpage install with 1-click install. For Raspberry pi fairly similar process using the (GUI) Synaptic manager.