Peru is beautiful, but I'm not a fan of Lima's weather (think seattle). So for travel+fun I'd recommend just landing in Lima and going elsewhere in the mountains. If I did not have to recruit engineers, meet entrepreneurs or do biz dev, I'd def. stay in Cusco for a while.

The food and transportation is very affordable, and really really cheap if you don't go to the touristy restaurants and instead head to el mercado (marketplace). You can get a full meal with soup, drink and dessert for like US$.60-$1

Now, if you want to meet fellow hackers/entrepreneurs and recruit incredible talent, check out http://limavalley.com the startup/tech community in Peru.