At this point the the life of physical media I'd not expect to see either of those sets at any of those stores, at least not until much close to Christmas and even then I'd consider them somewhat iffy. They've all reduced the floor space for physical media to the point that there's no room for...
I'm pretty happy with my existing BR (the "Stardate" edition with all TOS and TNG movies and the separate DC of WoK), mainly wanting the extended/DC versions of the TOS movies which have them. I can wait for BR editions of those.
I recalling being completely underwhelmed when I saw it during the original run. It was much like you've said. One long vfx movie with at least 3 reworked TOS stories clumsily combined holding things together.
In spite of still feeling that way, I'll purchase a copy of the DC because I love...