Well....
This is just ONE woman's opinion, but I like toys a lot... and I have a lot of fun with it.
This is not meant as a "come on" to anyone, in any way. If it offensive, I apologize. These are my true opinions and thoughts, and I'm just being honest about a subject I enjoy talking about:
I caution you in the thought that buying the "Rolls-Royce" of all toys right out of the gate is going to be the smartest thing for her.... or you.
When I became open to toys, I thought the very same way. Luckily, I had a very respectful, intelligent, skilled partner, that lead me on a different... and much more pleasurable path.
Toy play is like nipple-play, anal-play, or anything else. It's a nice, gradual progression, that you want to enjoy every moment of... not get it over with in and instant and move on to the next step... or maybe you do... (see s&m thread, if there is one....)
Me, I like the gradual approach. Going from a pocket rocket to the sex ball is too much, too fast... and honestly, it skips out on all the good enjoyment YOU could be having WITH her... which is another reason *I* like toy play... because my partner likes it, too... and there's nothing sexier than a man taking pride in his skills.
I'd really, really, REALLY explore that Pocket Rocket with her. Be able to use it on her better than she can use it on herself. Find out every little angle that makes her go wild... and use your sexual "thinking cap" to progress in a specific direction.
Read her body. Does it have only one speed? SPEED is a catagory ALL in itself!
What if you increase the speed when you put the vibrator directly on her clit? How does she react? What happens if you massage her g-spot with your fingers and hold the vibrator so that the fingers inside her are vibrating? BE CREATIVE. FIND EVERY WAY you can to stimulate her differently and ask her to tell you what feels good and when.
This all might sounds silly and elementary, but it's nothing to take lightly. IMO, her pleasure can he GREATLY enhanced if you take a little bit of time to nurture this and enjoy every bit of the process.