A client is making an early season hike to Mt. Aconcagua next month (October) with Alpinistica (http://www.alpinistica.com). This is not a trek in the national park, this is a hike to try for the summit. His friends pulled out last minute so he is looking for 2 more to make his climbing team. Since the climb is coming up, the climbing fee had been heavily discounted. You'd be surprise how affordable it is.
It is a great opportunity to pay a relatively small fee for the normally expensive and now exclusive (small group) expedition to the roof of Americas. Early season ascent also mean the group get to have the whole mountain to themselves.
Feel free to send me a message if you are interested or have any enquiries about climbing Mt. Aconcagua.
Cheers,
Jono