Wailuku is not a resort community by any sense of the word. This area serves as the county capital. You will find the county buildings, some commercial and some older residential but nothing much in the way of hotels. There are a limited amount of vacation rentals that are available but the inventory is very limited.
If you need to find a place to stay near and the lack of hotels in Wailuku is causing an issue for you, It should be known that there are more some hotel options in neighboring Kahului.