Sure, just remember that anodizing prevent oxidization for long term. without it, after some time of usage (especially considering "wet" environment of palms, skin oils, etc) alu would got oxidized.

Not that it's catastrophic - it's not rust, after all, oxidized alu is quite strong and look interesting. Although, it wouldn't be oxidized uniformly, so with time it could get more Fallout-like look with different colors at different parts. So, deciding on lack of anodizing for your personal copy should be done with full picture in mind (not that Fallout-like look must be a bad thing ).

/Estel