I vote for yes, get a washer/dryer!!!!! Yes, it is worth it!!
Lot of people talk about they would rather stay in their RV over a motel room, but yet would rather have the storage in an RV over a washer/dryer. You really don't know what someone has washed or dried in a laundry mat or RV Park washer/dryer. Kind of like sleeping in a motel bed to me.
Have had ours for almost eleven years. Did have a problem with the washer several years ago and had some parts replaced. Was a pain being without it.