You might want to edit that link.... it doesn't work, and when I go to "www.AmmoToGo.com" I get a generic domain-for-sale type page. AmmuitionToGo.com exists, though. I think you meant this page:
380 AUTO : Ammunition To Go
And just for comparison,
AMMOMAN.COM d/b/a Discount Distributors has:
380 AUTO 90 GRAIN GOLD DOT HOLLOW POINT
$250- 500 rounds or $450- 1,000 rounds.
So yep, Ammunition To Go's prices look pretty good.
If you're looking for practice ammo... Ammoman.com has:
FEDERAL 380 95 GR. (BALL)
$139- 500 rounds or $239- 1,000 rounds.
Peace,
Pete Zaria.