There certainly is plenty, and probably as "quality" as the high dollar titles most of the time. Likewise I am a fan of free and open source computer software. One time one of my girls had a first year class which required "Microsoft Office". We were pretty broke at the time, I had a legit older version which wasn't functionally up to date so I set her up with the most current release of OpenOffice. The prof's reaction to that was "Hell yes I should have thought of that!" I honestly can't remember the last time I bought a piece of computer software. At work I have the usual corporate supplied package but the homework is all done with open source titles on Linux. It all goes back & forth just fine!
I do a fair amount of data entry and I use Open Office exclusively.