Is the island tour in Sabah expensive? How much is it for five or six days?

Personally, I think Sabah is an economic island with cheap direct flights from AirAsia, and the cost is relatively low. For example, the lowest price for five days is only over 2500, depending on the hotel's grade. The higher the grade, the more expensive it is. Plus some other interesting items and delicious food, it will cost about 5 thousand in five or six days.