I bought 8 from CONNECT (mostly with their $50) and 26 others from other sellers (Baen and eBooks.com). Given the translation macro and programs available, CONNECT has to be cheaper since the formatting is static. I've read 12, and am currently reading 2. I'm not sure I'll buy any more from CONNECT, as I also prefer larger print that they seem to produce. I don't care if the book has 1000 pages, it isn't any heavier.
I did go shopping after the software update came out. I wanted to buy something to reward them for fixing the linkage between CONNECT Reader and IE (you can now have Firefox and your default browser and CONNECT Reader doesn't die). Couldn't find anything new, but I figure I still owe them one.