A facial can be a good investment but you need a beauty therapist that knows what they're doing, particularly if they're using electrical equipment.
Peels aren't for everyone. They can destroy skins both by way of how they are applied and to what type of skin they're applied to.
Many salons do what I call very slap dash jobs with very little insight into how to actually do a facial properly. For a good therapist, $100 for a facial that lasts an hour to 90 minutes is excellent value as, done properly, a facial does have benefits and works wonders with an established beauty routine.
If I came across a therapist who knew their stuff, absolutely I would pay $100 for a facial with them.