I think it worked well for oblivion and air, as that it was a completely new experience, but world's first ride fully dedicated to VR? Anyone can buy a vr headset, just because it's on a coaster doesn't mean that it means as much as the world's first vertical drop. They're really scraping the bottom of the barrel with these claims now, I just hope they don't go down the same marketing route with sw8, even if we know they will.
It did work for Oblivion because it was a completely new experience, and it was truly the first dive coaster ever built (not vertical drop, but that's another debate
). Nothing like it really existed besides it's clone in China until Sheikra and Griffon were built, and a lot of people say those two are considered to be better. I love Oblivion, and it's world's first claim meant something in 1998, but in 2016, it feels meaningless now that better dive coasters exist.
Air however, I don't even recall being dubbed as a "world's first", and it's not even the first flying coaster. What I do recall was Stealth at California's Great America was dubbed as the "world's first" flying coaster and that opened 2 years before Air did. Even then, the flying coaster at Granada in Manchester opened in 1997 and that was the first flying coaster ever built.
I agree about the VR thing though. I've been interested in it for years and whilst I do want to try out Galactica's, there is just no desire for me to travel up to Towers and try it. As you say, it'll become a lot more available in the next few years thanks to companies like Samsung and Sony making them available to buy the headsets. That's not a dig against Towers specifically since Six Flags do it as well, but the former has such a bad habit for marketing things as "world's firsts"
I've said it before and I'll say it again, Liseberg built Helix because they wanted a world class ride, they succeeded. It's not a world's first, but loads of people outside Sweden are going there just to ride because it looks amazing. Towers, please do the same.