Let me get this straight. I've been a huge fan of Sukho Thai and have long been spreading the gospels of the amazing food.
On a monday evening, I'm craving sukho thai again! (yes, these do happen often). The Pad thai was excellent as is the Panang curry.
The shrimp chips, however.... The shrimp chips used to be $2, then it went up to $3, then $4, and now it's $5! The portion has since halved and they only give you one half fulled tamarind sauce. Which, to be honest, the price of this is mostly going to the sauce. Are you expecting your customers to be economical about the way they dip the chip into the sauce?
I'm writing this while my shrimp chips are hanging out drying themselves hoping to be eaten some day.