I bought one at the Coto at Corrientes y Juan B Justo just last week. - Top House, in fact, because other products of theirs have been just fine for me (box fans, etc.) I'll keep my fingers crossed. I've used it many times already and so far no leaking, no problems at all.
They had a couple of other models, too, I think from Philips, that were more expensive. ($210 and $350 pesos each, or something like that. The one from Top House was $170.) Look around the electronics/appliances section because they are in a couple of different places.
Good luck!