I am sort of on the fence on whether to convert my old dvd collection to iTunes. But for now unless I come across an excellent price for a movie on iTunes, I'll keep the .mkv version running on my Plex server that I access via the Plex app on the ATV. For new movies my tendency of late is purchase directly in iTunes or via codes if available. Movies Anywhere has sweetened that conduit nicely.It's a disaster for Apple as I too was in all and replacing old DVDs with iTunes but no way now.
By the way BODYBUILDERPAUL, 12,000 annual miles is fantastic! My current mix is about 80%/20% road to mtb. As you know it's not a matter of whether you will crash but when you will crash! lol