A few points I’d like to add:

• MovieZyng is owned by Allied Vaughn, who handles the distribution of Blu-rays made from Warner Archive Collection, among other studios. So when you buy from MovieZyng, you’re buying directly from the studio. This is good news if you don’t want to support Amazon. (Warner Bros. also owns GRUV.com, along with Universal, which is where they release their more mainstream titles.)
• This set will include some shorts from the Looney Tunes Golden Collection DVD set from 20 years ago, so this should upgrade those shorts to HD.
• Warner Bros. also announced that they will be reprinting the Looney Tunes Platinum Collection Blu-rays; they’ve been out of print for years and are highly sought-after on eBay, usually going for $200.