Frankly I think those catalog steel books from Disney are priced too high in today’s marketplace with Disney+ a viable and cheaper option for many people.My assumption is that the last round of steelbooks didn't sell as well as Disney and/or Best Buy had anticipated and the recent sales were an attempt to get rid of stock. I don't know how successful it was though.
Even though Frozen was marked down to $14.99 for a week at the beginning of the month, and then to $9.99 for a day a couple weeks later, there were still three copies of it sitting on the shelf at my Best Buy this week when I went in to get the sequel. There were none of the sequel that hadn't already been reserved (mine was), but the first one still had leftovers and is now being priced at $34.99 again. It almost makes me wonder if they will print less copies of the steelbooks this time than they did last time. That would be what I would lean from this if I were Disney.
Of course, I would also street reissues of catalog titles at a lower price point than $29.99/$34.99 steel, especially considering that all of these are on Disney+ for a fraction of the cost. But what do I know?