I will be buying some, if they turn out decent, just because there are certain characters/representations I really like to collect anything that appeals to me representing them. I'll be keeping my eyes out for any Obi-Wan (PT and OT), Luke Jedi and Darth Maul, after that I'll likely just watch the ship sail on.
At one point I might have been tempted by the Trek, but as everything else in my collection moves towards the high end of the spectrum, I can't see these fitting in anywhere. And I guess that's the point - they aren't for us but maybe for kids who like the larger size?