On the bubble with A9s- Would you call an all in by the shortstack?

[AA suited]

Party 20+2, on the bubble (4players) and I'm #2 stack with 2k chips. short stack is to my right and has 1k chips. blinds are 100/200.

shortstack is utg and i'm button. i have A9s and he went all in. i was VERY tempted to call, but folded instead.

my reasoning is that if i call and lose then i will be the shortstack. I figure why risk it since i can afford to wait for a premium hand (jj,qq,kk,Ak).

Was that correct?