SGA - Blu Ray

[twinsarein.livejournal.com]

 
I love this show so much, that I am considering buying the complete series on the newly released Blu Ray set.  So far, I've been watching the show through Netflix streaming.  While I get to see all the amazing episodes, I don't get any of the extras.  I guess what I'm hoping to find out, is if the extras are worth it.  I've found that sometimes the extras are great, and sometimes they're bogus.  What are the extras?  Are they fun to watch/good quality?  I enjoy commentaries and bloopers the most; are they included?

Btw, I think the extras are the same, no matter the format. So, even if you have regular DVDs, I'd love to know what you think of the extras.

Thank you in advance for any help you can offer.