snaffles: i and other people have explained to you before what is proper, i have even tried to explain why; you saying, just after that, that you "see no reason why" makes me feel like i am talking to my cat (as befits her heritage, she will ignore what i say most of the time and go on with whatever she feels like doing at that time).
however, i am going back to the point again (not sure why, but i know next time i will reconsider carefully; others might simply ignore you in the future -- already explained so i wont dwell on that)
statistics have little if anything to do with photography. "we" don't care about the equipment, brand, or whatever. these are tools, and the most important thing is that they do what we need them to do, and as easy as possible. "we" also tend to take joy in using these tools, which helps the "creative process" and/or helps concentrate on "the job" (creating images) rather than the means. we happen to have chosen pentax, you will notice here some people who actually shoot other brands too, sometimes other formats, some of us do so because we decided we need to, some others simply enjoy it and can afford it, some are "about to decide", etc. the point is, cameras don't win contests, similar to guns don't kill people, people do, speed doesn't kill, stupidity does (by yours truly); the badge on your camera will not win you any awards, or lose you any, it might win you social acceptance, feeling of "belonging" and so on, but if the purpose is photography, and better photographs, what you need to work with the most (for improving. adjusting, and so on) is the brain behind the camera. this is in no way an insult, nor should it discourage you, it is true for most of us (after more than a decade, i am consistently unhappy with my pictures, but i guess unhappyness is, to some extent, the motor of progress, right?
) .
you will see canon and nikon recommended in most places. it is not surprizing, nor is it a problem in my opinnion. as far as i can tell, most people for which pentax is a suitable choice only need to have the name mentioned and a push to "check it out", they can figure it out by themselves from there on. if they can't, it is most likely they would be unhappy with the choice later, so no need to try to "convert" people (ex: somebody who will be willing to buy a canon entry dslr because "the pros use canon" will be dificult to convince to buy pentax, and if convinced, will most likely be unhappy in a short time, for obvious reasons: "all the pros i see shoot canon")
and to make an inflamatory remark for the end: a photographer who is not yet able to detatch the work he does from the equipment he uses has a long, long way to go (and perhaps some truns to make to get going in the right direction, too). i usually am very suspicious of photographers who seriously describe their equipment, brand and so on as an essential (and some times even defining) part of their work. i am also bored of people asking me what gear i use (especially people who wouldn't be able to tell the difference between various lenses i might be using anyway), and i recall a quote i will probably never forget: a well known photographer has once been asked "do you only use available light?" to which he replied "yes, always available light. candle light, sunlight, flash, tungsten, you name it, whatever is available, i use it", i believe that says it all.
good luck.