A couple sessions with a local personal trainer per week will cost $200 on average. Over the course of 16-weeks that's $3,200, and you haven't even scratched the surface of arguably the most important factor in your success -
nutrition! Not to mention, what do you do for your other workouts?
Instead when you learn the core principles and how to adapt them to your individual lifestyle, you'll save a ton of time & money because you won't need a trainer again and will be able to manage your own body composition for life!