Not sure what autograph sizes you are using but I just do the 4x6 size and put them in a cute Disney photo album from Big Lots.
Taking the above in account, when I was working, I did the printing at work on a laser printer with photo paper. Quick, easy, free printing just had to take the time to cut at home and they looked awesome.
Now that I'm not working, I've decided with the cost of good quality paper and color ink, it's cheaper to have them printed. I have Snapfish print them (matte) on their 1 cent a print deals or 100 for $5 deals. While I don't think the quality is quite as good as when I did them at home, the money and time savings makes up for it.
If I were doing pages that had little color or ink (like donatalie's vol 1), I'd print at home.