The MXL v63m is the same as the discontinued v57m, as well as the
still available 2006. Also, the v63mbp (for "battery powered") is based
on the same circuit and capsule, with the one difference of including
an option to use an internal battery rather than "phantom power".
Many folks have used these mics with success, and have mentioned
as much on these boards and others.
My guess is that, like many businesses, MXL sees it's future in the
higher end of its line, and the budget items are being phased out,
in an effort to improve profits. Whether or not that turns out to
be "short sighted" or "visionary", time will tell.
Regardless, the v63m types has been available for quite a number
of years, and they represent a bargain, especially at the price
you paid. If you want to add a second to make a pair, either the
v63mbp, or 2006 should serve.
Or, keep your eye on Ebay. Everything shows up there eventually,
especially to those who know what they are waiting for.
If you find that your bargain mic is adequate, but wish it had a
bit more polish, there are mods you can make (if you enjoy that
sort of thing), or you can send it to an expert for some tweeks
that will make it even better.
Search these boards for more info.
HTH,
Noah F.
did ya get the free mic stand as well? 
