the only issue nagging at me now is how the K-x can cost so much lower than mid-range nikons, with it's relatively powerful specifications?
it's either a case of Nikon and Canon horribly overpricing, Pentax using cheaper materials?
(forgive me if my question offends you, Pentax users.. for i do not mean to. i am a fan of neither, being a newbie, and it's a logical question i would ask given the mouth-watering specs of the K-x at it's price)
a simple explanation, will be advertising.
how many advertisements do you see for nikon? i fly sq to london, i flip open the flight magazine, advertising's there. for the nikon d90. i flip open photography magazines, canon has a full page spread. pentax usually has one simple one page spread, and not in every magazine at that.
canon has buses running all over singapore. so does nikon.
once in a while, i see one pentax advertisement. i'm fine with that, it just means that they're spending the money wisely. one could also argue that it's because they don't have the money. but definitely, aggressive advertising is going to need money, and that money doesn't come from thin air, it is passed on to consumers, directly or indirectly.
i have used pentax cameras for 3 years now. my k20d is working as fine as ever, i have never had any malfunction on any of the 3 pentax dslrs i have laid my hands on - 1 k20d, 1 k100d i started off with, and a modified one that i purchased from china.
i don't think you need to worry about it being substandard or cheap. a tool is a tool is a tool. i think pentax has its disadvantages, and no pentax user in clubsnap at least, will fail to present to you an objective view and tell you "oh it's the best brand in the world", myself included.
so look beyond the value for money, there are problems as well, like
1) marginally weaker high iso noise control
2) cited low light af problems
3) cited moving thing af problems
4) limited user market in singapore dictates that you will have a limited second hand market to select from; even first hand will be hard to get certain lenses because shops do not find it lucrative to carry pentax
5) some occasional jokers will tell that "viewfinder very dim ar! i cannot see the numbers"; to be honest you can ignore these
but if you're looking for something that does the job, and you're on a limited tight budget and you don't actually mind being different and meeting people who tell you "huh? what brand is this?" then consider pentax as a brand.
as long as the company continues in its current direction, i will stick to it.