Go East or North from Santiago?

[pingvin]

Got 2 months and plan to start in Santiago. Initial plan was to go east to Buenos Aires and then north-west back and up to Bolivia.

But realize that its FAR crossing the continent (and back) and will take much of the time, worst case not even getting to Bolivia and even less chance of seeing Peru. And looks very flat (confirmed by google street view) east of Andes which in my book means boring roads and scenery. Or are there entertaining and scenic routes???

Plan is to buy bikes in Santiago so also need to go back to sell the bikes in Chile (though not to Santiago of course).

So wondering if better plan staying on the west side crossing back and forth between Chile and Argentina. Gives us a lot more flexibility and time for Bolivia and Peru. And when tired of riding, pop dwon to the coast and spend a couple of days on the beach

So what would you do? Want spectacular scenery and fun roads, both tarmac and gravel. But maybe just too much Andes doing it for 2 months :confused1:

Or something in between, any advice is welcome