Looks like you're doing your research, which is awesome! I'm going to echo what a few have said though, and go for something cheaper than some of the luxury vibes, just because every woman is different and it's good to find what works for your anatomy before you spend a whole lot of money on something that you might not care for and is super disappointing. My first vibrator that I loved was the first time g-spot tulip, and I still love it, but I'm in the market for an upgrade (the seam down the middle of the toy wasn't noticeable at first, but I seem to have become more sensitive down there, and it causes some pinching with intense thrusts). As a gift though, you don't need to go that cheap. But you're not sure if she'll like rabbits or not, or if she'll want something more for clitoral stimulation or g-spot, and shape and types of vibrations are also another consideration.
If I were you (and this is totally based on my own research and what I'm saving my points up for to upgrade my vibrator collection) Harmonia or Moka for g-spot is a good safe bet based on review, fs that is something she like or wants to explore. Does she prefer clitoral stimulation? In that case, Ako, or something like Isis or Chandra (and you can play with her easily with those!) might be a good way to go. Even an iconic bullet would be a good first toy, though it does take watch batteries, which I find annoying.
In any case, I'm not the expert on vibrators here (still learning!) but I think it's really cool that you're getting something nice like this for your wife--toys are a fun addition to the bedroom, they spice things up, and are fun for both partners who are open to them, I've found. Whatever you choose, I hope she loves it!