Aren't we more or less choosing what we decided to buy? The MS3 will always appeal more to an overall mass because it's a compact hatch, and based on MSRP it's simply a more affordable car, in a more affordable price class. I guess from what I've read, the insane deals on the leftover 06 Speed 6s weren't around in every part of the country. That's too bad, because based on the huge incentives Mazda had going on the Speed 6 in most parts of the USA, the Speed 3, as nice as it is cannot compare to the Speed 6 in value. Many including myself paid less for the Speed 6 then most paid for their Speed 3.
If Speed 3s were selling for even invoice, it would be a better bargain, but unless someone really doesn't want luxury, refinement, and AWD, and doesn't want a sedan, the Speed 3 is the way to go even at MSRP, because it definitely has to be more thrilling to drive because of it's lighter weight, and rawness over the more refined and friendlier driving 6.
It's all a sacrifice and personal preference. As much as I love the Speed 3, I'd never pay anywhere near MSRP for ANY car (not worth it IMO), and I got nearly $5500 off MSRP on my Speed 6, so no regrets here, and I'll take my heavy AWD sedan as a daily commuter any day over a Speed 3. It's just a nice smooth ride, but still has enough of a performance personality to cure me on my daily commute to work. I admit, if I didn't have my S2000, The Speed 6 wouldn't cut it as a combination fun car daily commuter. Then again, the Speed 3 wouldn't cut it either. I'd probably have gotten an STI Limited if I could only afford one car.
