Vibrations really help me relax and enjoy anal penetration. I loved using one of my vibes that way before I got all wise and responsible about not risking losing it up there and stopped doing it. I need more vibrating butt-plugs. Definitely. Thanks for giving me an idea for a new wish-list :-* .
I don't need vibrations to enjoy an anal toys, and if a toy's got vibration capacities it usually means it's less likely to be waterproof (if it's rechargeable), or that the toy will be floppier if a bullet's not inserted (if it's got a removable bullet). So, for me, simpler's better.