Funny how I never had that problem when writing multi-threaded programs in c or c++. Oh, right, I didn't bother with crap like the stl
You can either exercise total control, and guarantee no dangling pointers, or take the easy way out and pray.
On the other hand, it allows them to be a lot more casual about throwing up far more servers than they normally would, so it tends to balance out.
Not really.
Everyone is looking at money, money, money. Your financial situation can change overnight, invalidating all your assumptions.
Since the OP seems be be focused more on what's "convenient" and"financially the bast", he should set the example and renounce his own citizenship, because nobody wants a "citizen of convenience" who will just pull up stakes and abandon ship when the going gets tough.
Fast, cheap, good: pick two.