I have a Delight also and generally like the Fun Factory toys. They don't take themselves seriously at all and make better quality toys.
Anything rechargeable is going to cost more, but tends to be stronger and last longer so it's worth it.
Besides Fun Factory, you should check out the Lelo toys. They're pricier but really well made and designed. My latest purchase was the SaSi which is just an odd duck. It's totally different in design and intent than almost all other toy as it's meant to simulate oral sex. You can see a video of how it works on youtube.
Have not tried pyrex at all, but I'm not adverse. I've just always been more focused on vibrators than dildos.
Hm, it's hard to skate that line of in/appropriateness in a thread that discusses sex in general. This might be even harder.