Camera/Brand Combinations

There was a recent thread where the OP posted a picture of the cameras used.

They were Nikon, Leica and Hasselblad.

I use Nikon and Leica.

It may be me but a lot of Leica users seem to also use Nikon.

If this is the case is there any particular reason why Leica users also use Nikon (or Nikon users also use Leica)?

It any case it would be interesting to see what camera/brand combinations are used on the Leica forum so please post.

Regards

David