The TRU versions are fantastic, but come with fewer accessories. That cuts the price nearly in half. It's a deal for several characters that have less cool accessories, but Statler & Waldorf definitely need that balcony.
The TRU figures are in smaller packaging and have a lower price. The balcony would not fit in the package OR in the price point. It is exclusive to comic shops. Find one at comicshoplocator.com or order online (anywhere but toysrus.com).
I wonder when we'll get more info on series 3 of the mini mates. I feel like those should be out soon, but I don't remember seeing any updates about the figures since the initial official announcement. No word on if there'll be more characters or who will be an exclusive where or what.
I've seen production samples, so we're getting close, but there will not be any mass retailer exclusives, just the comic shop wave. So all of Wave 3 is exclusive to comic shops and specialty stores. Pre-order with your local shop, or an online retailer. LukesToyStore.com has a variety of buying options.