what store has the best DVD/blue ray exclusives?

[zorro1701e]

i want to buy the "Avengers" blue ray today but i want to know which retailer has the best exclusives.
I've bought DVDs before at best Buy, Target, Walmart, etc... then i find out that another retailer would have a bonus dvd or something...
so how can i find out which retailer has best exclusives.
going online retailer by retailer might work but they dont always tell you what extras there will be.
Any ideas?

 

[May]

The web site tells you about the product, so I don't know what you mean.

http://www.target.com/p/marvel-s-the-avengers-target-exclusive-2-disc-blu-ray-combo-pack-includes-90-minute-bonus-disc/-/A-14095158