My offer provides 2,000 bonus SPG points after the second stay, 2.500 after the third and 3,000 after the fourth up to a total of 7,500 bonus points for four stays.
|SPG promotion T's & C's|
In that case, I'd earn 250 points for being a Gold Member, 5x points for being elite and putting the stay on my SPG Amex and 3,000 bonus points. That is 3,580 points valued around $90. Likely not worth the incremental time but if you were short on stay credits and could pick up the 3,000 bonus points, it might be worth it.
My points from my second stay during the promo in Istanbul already posted.