about platinum

[Shubahh]

Hi; dunno if this is the place to ask about this but, platinum is in US dollars? I see (i.e) the 89.90 pack, and depending if it's in USD or Ar $ (my country, Argentina), its really cheap for me, or really expensive...
Thanx in advance for the answer...

[Limsi]

It's based on US dollars :)

[Shubahh]

It's based on US dollars :)
Ohh..too bad for me. Thanx for the reply