People will always find a use for CPU Power, horsepower, and salt.
(I'm on an aluminum macbook and I'm noticing things on the web getting slow, even on a fresh OS install.)
Right - but how many cores/threads does Safari (or most any browser use?) I'm betting that number is more than 1, but less than 4, which means getting more threads probably won't do much to speed up your web browsing experience unless you're doing it while you're encoding or rendering something in the background at the same time.
In other words, a dual core machine that hits 6000 won't really feel much slower than a quad core machine that hits 12000 because most of your software probably won't use the incremental threads. OSX will throw your background tasks onto unused cores, but that might make your web experience 10-20% faster, not 100% faster like the benchmark would suggest.
Not against cores (I'm looking to get four more!), just want to point out that we might be reaching the point of diminishing returns right now.