Bought a $28 DVD ripper program that works very well (already ripped 5 movies). Seems the average movie is ~1.2GB.
Ordered two 32gb High Speed micro SD cards to put movies on (the tablet will take a max of one 32GB SD card at a time). $60 with tax and shipping. That means I get movies from my library stored for about $1.30 apiece. After the five rips the DVD ripper has pretty much paid for itself (assuming $4.99 for purchased mp4 movies, pretty much the going rate). My "time" is free of course.
Down the road I may purchased some mp4 movies but my DVD rRipper program actually has a preset for my specific tablet so it seems if I want Inception (being a relatively new release) to work optimum on my tablet, it might be better to buy the DVD online for $4 (on sale) and then rip it for the tablet.