I think this RS discussion has been so many times.

Why RS/MU not others....blah blah

DUDE Rapidshare is best in the business, I personally had a Premium of RS (now Expired) ...it is best and the stable Filehosts till date,
Megaupload is also good though i never got any PREMIUM of them.

Others FILEHOSTS LIKE HF/FS/Filesonic/Duckload and many more are good for UPLOADERS like Me

Though people still looks for the Rapidshare, as it is started many years, people have a trust on them and also have many PREMIUMS,so they can't leave them.

I knowone of my freind who got MU Lifetime for $99 at 2006 i guess and he is using for now also,so it best for them as they don't need expense everytime.

so all the factors make RS/MU as best file-hosts for DOWNLOADERS
and Katz is alwayz know for DOWNLOADER needs not uploader needs.