Hmmm, you're right.
As a matter of fact, the only Pelican light I read about regularly on CPF is the M6 H3.
I checked out Pelican's website, and it seems that almost all of their rechargeable lights are made of plastic (Big Ed, Little Ed, Stealthlite, M11). OK, they're ABS resin so they should be pretty durable. Nevertheless, I tend to make the negative association of a non-metal flashlight with 99 cent cheapo 2-D flashlights. (Having said that, I do have a couple Streamlight ProPolymer Luxeon 4AAs on the way from Fox International, so don't pile on me for being prejudiced against plastic flashlights...)
There's not much of a cost differential between the Pelican rechargeable lights and metal lights with comparable performance (e.g. M11 vs. Magcharger). It's arguably a fallacy that a metal flashlight is better quality than a plastic one, but I think that's a factor.
I thought you had a Big D Rechargeable? I clearly remember your thread about using the Big D high-output bulb instead of a potted Carley or Welch-Allyn lamp...