not sure how many butlers there are at 10-tent aman-i-khas, but other aman butlers are at least dedicated and exclusive if not live-in. if i remember correctly. as are soneva's for example. similar to when butlers/staff accompany residential hotel accommodations. (primarily villas.) in those cases being paid for by owner of hotel residence.

"private butler" >
amanjiwo - (one) 2BR dalem jiwo suite $3000 "personal butler, always on call"
amankila - (one) 2BR amankila suite $3400
amanjena - (two) 2BR Maisons Jardin €2230 ; (one) 2BR Al-Hamra Maison €2550
amangalla - (one) garden house $1100

? >
aman-i-khas - 10 tents
amangalla - 33 rooms - so at this aman they must not be dedicated/exclusive - for every room?