I think $120 is a difference.
Heck when K20D launched at $1299 within a month I bought my first Canon 5D out of frustration with pentax predictable start high pricing. Had K20D launched where K10D launched at, $919 or so I would have continued buying pentax dslr (s). I eventually bought my K20D for $610 off launch price some 8 months after its launch. Same will happen with K-7, many Pentaxians bought it at $1299 and by April 2010 it'll likely be $699. A handy $600 savings just for waiting 8 months.
Take a Pentaxian who bought a K-7 at full list and then found it too small so he then bought its pentax grip for better handling. He paid more than a Nikon D300s costs today. And the D300s doesn't need a bigger grip for better handling.
$100 here, $120 there it all adds up.
Originally posted by k100d
when the cameras are ~$1500 ... is $100 really a big difference?