Well heat wise they put out roughly the same...it is just that the Pentium 4 spreads that heat over a MUCH wider area. The heat issue was crazy with the T-birds and Palominos but with the Tbred As and Bs and even Bartons the issue has gotten much much better.
But yeah, 96 dollars for a retail 2500+ is an insane deal. Just get something like a SLK800 + Big fan @ low rpms and you are good to go my friend
But usually the heat issue plays more into overclocking, not running at stock speeds ( Tom's has a comparison of Stock heatsinks on the AthlonXPs and he says that they are very well for the processor providing you are not using it to overclock. Then again I don't know why anyone wouldn't want to buy a better Heatsink if they overclock. Though I bet its nice buying a Retail P4 and pushing it pretty far on stock cooling...but to each his own

)
But in the end it comes down to a slight annoyance of a bigger heatsink vs a few hundred dollars as you have presented and in that situation I can live with the minor annoyance of buying a nicer heatsink
As for price competative...well they dominate in video encoding, they have the consumer brand name ( yesterday I ordered a system from newegg for my best friend and their parents really trust me but when I told them I was going to not use a Pentium 4 processor they became very apprehensive and I had to sit there explain stuff but it seems they are preparing for the worst or something) , are competative in most levels, and they do own the lead on the high end processors, have their own mobile chip that rivals Apple in power consumption, Early benchies of Athlon64 show the Pentium 4 still leading... so I don't see why they need to be so competative since they are in such a comfortable position and frankly if I led Intel I wouldn't drop prices.
It is AMD that needs to be competitive and that is why they are
And don't get me wrong...I'm no fanboy of Intel nor AMD...well that is a lie

a "AMD 4 Life" type of guy and unless the person is doing cideoencoding as the sole purpose or alteast the major reason I steer them toward that nice green color.
Green used to be my favorite color as a child you know
