If you already have a printer why bother? Just buy a cheap scanner. It is my experience that home users only ever use a scanner about 1% of all PC usage time. So why spend big money on one if your not gonna get the use (like a DTP, or Web Designer would?).
To answer your question though, yes they are good for many reasons. They save space, one unit only.
You get a Printer, Scanner, Photocopier, Fax (providing you have the software) and the quality and price these days is great.
(gem) Lyst til et hurtigt spil der garanteret ikke tager mere end to timer? Start et nyt spil af eget valg, vælg tiden for spillet og sæt Tiden til 0 dage / 1 time, Bonus til 0 dage / 0 timer og grænsen til 0 dage / 1 time. (TeamBundy) (vis alle tips)