The experience on Blu-Ray is terrible. I have to sit through as much as 20 minutes of unskippable commercials before I get to the menu screen. They even show you commercials about how great movies are on Blu-Ray - even though they should know you already are a customer because you're watching a Blu-Ray. Not only that, some of the commercials are streamed over the Internet, which means they use your bandwidth without asking permission to download an unskippable commercial.
The experience is getting a bit ridiculous, and I personally hope someone writes a DeCSS for Blu-Ray so that we can uncripple this format.
Btw, I don't actually buy any Blu-Ray disks, I just have my Netflix account enabled for Blu-Ray and watch most movies in that format since it looks better on my HDTV.