Maybe it's an odd question, but this seems like a good place to ask. My gf is familiar and enjoys her vibrator collection. And, you know, if she enjoys it I enjoy it

I'm thinking about buying her a new toy. She's never owned or used a dildo before, so that's what I was thinking about getting.
But that raised a stray question in my head. What's the difference? I mean, I'm a fairly normal guy, so from my perspective anything powered by electricity and with more features is obviously superior something that isn't. Is that necessarily the case, though?
So ladies, what's your angle on this particular controversy? What are some of the differences that you notice? I know I'll find out later from my girlfriend, but I was interested in some additional opinions.