I think even I could build those out of previous lego sets and pieces, not not splash out that sort of cash they are asking for miniatures. They look nice, but there’s not a lot of bang for buck here.
There are probably even "how to build these’ or MOC videos on YouTube or lego brick sites for this kind of thing out of spare or regular lego? Or even buy 4 or 5 pieces from the MGS series of ships for just one of those lego sets.
Although I’m sure the 25th anniversary pieces will sell very well, and may even be an investment of sorts?