We stayed in what's called "The Village" which is why I often link that specific webcam here. It's in very close proximity to the gondola station.
There are actually 2 separate gondolas in Mammoth - one is essentially a touristy thing that takes you from the Village to one of the lodges. It's completely free, and it's the one you see in the cams. It was fine.
The 2nd takes you from Mammoth's main lodge to the 11.053' summit. It costs close to $40/person. We LOVED that ride! The views at the top were incredible. And the snow in mid May was still well over 150" in depth. (It was nearly 100" at the base, lol)