I'll add my short Story ....
March 2007 - finally tired of PS and (after several years of debating ) convinced myself I needed a DSLR. Today I regret not getting one sooner.
Price was a consideration. Entry level models from Canon, Sony, Nikon were all under the $1k mark that was the straw that borke my camels back as for justification.
Salesmen at London Drugs of all places told me to check out the K100D. He was not pushy - suggested I hold all models by all manufactors , take a few pics , see how they feel, go home do some research.
Two days later I bought a K10OD , Kit lens and a Sigma 18-250
A little more than a year later and few more $$$ well see my sig
The only regret I have is not having one sooner when my Kids were in school sports. Pentax has it's flaws as do all models - for what I do, what I like , Pentax offers the best bang for the buck IMHO. I miss out occasionaly at the fast action shots for some friends (kids hockey games ) but these are usually in very tough conditions and I still manage a few decent shots.