Maybe i should move to Aruba. Seriously though, in Cali a PT can easily earn $75-100/hr at a decent gym. I used to watch that "Workout" show, f-ing lame. Unfortunately this is how personal training works. In fact, here's the secret to successful personal training session for most clients (your typical middle-aged, ignorant, overweight housewife):
1. Entertainment training: the colorful stuff in the corner that doesn't get real results, but requires instructions and a vivid imagination to use. This includes bosu balls, those spongy blocks you stand on to throw you off balance, various weighted bars and odd-shaped implements that are usually laminated in a colorful latex rubber, swiss balls, and those half-foam roller things. I'm surprised I can't think of more, but I tend to avoid that corner of the gym. These exercises require balance and some finesse and thus seem difficult, making the client believe they are getting the "secret exercises" needed to achieve their goals.
2. Abs: most every client thinks abs should be done extensively to qualify for a good workout. It burns and most clients will be out of breath by doing them, making them seem highly effective. This portion of the workout should take about 15 minutes, maybe 20, and during this time you should socialize with the client so they enjoy the time in the gym and look forward to your company during the next session. Besides, it's not like they actually do abs the entire time--most trainers sit on a swiss ball and BS with the client.
3. Strength training: with machines or dumbbells. A couple key exercises can be used so they feel like they are getting the "whole package," as they know they are supposed to lift weights but generally don't like to, and certainly don't want to bulk up (like that'll ever happen).
4. Finish with cardio: by doing cardio at the end they leave out of breath and sweaty, and thinking back about all the other stuff they did while in this state makes it seem more demanding and effective than it really is.
I've seen clients stay with trainers for years because they are active (everyone knows they should be active) and it's socially acceptable and entertaining. They might not have made any progress in the last year, but it really doesn't matter if this process is carried out effectively.
Maybe I'm just ranting here, but most personal training is a joke.