i am a recreational weight lifter who works out at home and designs his own strength training routines, and after hitting a personal record for amount of weight lifted i felt a great sense of pride that what i was doing was working.
definitely. if you can motivate and get on a schedule yourself, you can save a lot of money.
i have been following my own weight lifting routine, rather than hiring a coach, and i have been making great progress. i feel like research is better than paying someone to help you.