DIY Speakers, worth the hassles?

Are DIY speaker kits as great as they claimed? I mean several places claim that thier products are as good as 5 to 10 times higher-priced brandname products. Are these true or if it's just a hype?

Say will $1500-2K DIY speaker kit are as good as 5-10K speakers? Or will the sub 1K kit be as good as 2-3K speakers?

Are there any real A/B test reports somewhere?

Also any real experiences from the real DIYers in the group would be really appreciated.

thanks,

ake