I am in a similar situation and was about to take the plunge into SAIS before my UK 1-yr optionb egan to creep back into view. I got into SAIS and also into a regional studies program at Oxford. Aside from the cost, here's how I see my choice, in bulletpoint form:
Oxford Pros:
1 year
Globally recognized 'brand', lay prestige
Excellent experience, albeit very self-driven
Great network, although self-created
Good name in Europe (where I'll likely end up)
Oxford Cons:
Academic experience not as relevant/rigorous, lack of quant/generalist IR focus
Networking very organic, not a cohesive group of alums for career purposes
SAIS Pros:
Excellent academic rigor
Excellent alumni networking
Great student experience (1yr in Bologna)
Great name amongst those 'who know' in the policy world
SAIS Cons:
Not known amongst people who 'don't know' it
It is more expensive, although I’m working on that
It’s 2 years and 1 yr more than Oxford
Good but limited name in Europe, more pull in US/Asia
Now the context is that I’m not married to the idea of an elite policy job, although I’d love one if it came my way! I could very easily go back into the field I’m leaving for the masters, although the reason I’m going is to propel me to the next level in the field or slightly change focus.
I hate to sound like a name snob, but it’s a consideration with any degree. With that said, is it better to go for SAIS’ really excellent program with excellent prestige in limited areas or Oxford’s good but slightly less engaging program with excellent reputation in wide areas (but not nearly as much in the limited areas where SAIS excels)?