Dengan it's bersifat pilihan. Dalam contoh, kira2 demikianlah kepasrahannya: ... risiko yang sama dalam hasil [pencarian] mereka, jadi, ya sudahlah?

http://blogs.forrester.com/mark_mulligan/10-08-23-why_apple’...
The likes of Warner Music and Google make similar risk warnings in their results, so no big deal then? Wrong.

jadi ingat cuplikan lirikan salah satu lagu yang populer sekarang ini. ini juga salah satu alternatif terjemahannya

I think 'ya sudahlah' is sometimes used to signify an end to a discussion. This can happen when one party is not prepared to give a logical explanation of their position but merely repeats an assertion. Even if the other party does not agree, they might withdraw from the discussion if their opponent seems unprepared to move or even consider a reasoned argument. 'If you say so' is a slightly sarcastic way of putting this in English.