I am sure many many people go for too many mega pixels. Its all down to what the final out put will be, if you only print a 6x4 there is little need for a 10mp let alone a 24mp. When I worked in a retail place during the first year of my BA I came across this all the time along with people telling me I need more got to have more. Now I would go for a higher resolution camera, but I have got superb and excellent results from the 10mp sensor D200/80, and 12mp D5000/90 and even more so off the odd ball 6+6mp Fuji S3 sensor. Off these small sensors I have printed up to A1 with success, heck I even printed A1's off a Ricoh GX100 (10mp) compact. So I look now and think what would I buy when I next get a newer body and I am drawn to the D700 or D3, I want a better roll off in the highs maybe a nice gentle curve instead of a brick wall, colour if its good, however a wide DR is ok if I can print said range. I would say better to spend on lenses but I have all the ones I want and more than I require, oh I am happy with my bag superb.