Apart from 2.01+, I can tell that alot of people are not using their eloaders anymore because they can downgrade to fw1.5 and use web browser(Links2) and even more convenient homebrew load directly from GAME XMB. I am one of them.
Though 1.5 can't have the AVC MP4 made exclusively for 2.00, but 2.00's primary update is an official web browser, although Links cannot view SSL(not yet anyway) website which is used by a lot of email servers such as gmail, I can still use it to download files and surf the web. Fakeupdater works and firmware launcher seemed to be very buggy, but you can emulate 2.00 or 2.50.
I think I'll stick with fw1.5 from now on. What are your fw version?