If you are interested in learning how to play the guitar, you have two main things to consider (even if you don't know it):
(A) Should you take guitar playing lessons out of a local shop from an actual instructor?
Or,
(B) Should you find a program that teaches you how to play guitar online?
Traditionally, learning to play instruments was primarily done through a small shop (in a rather tiny back room), and you paid big bucks for around half-hour sessions once a week. You get in your time for the week, then go home and practice everything you learned for the next 6 days; then you go back for another lesson.
What if you have questions during the week, though? What if you'd like more help with the last lesson because you didn't completely understand something? Wouldn't it be nice to record each and every lesson so you can go back to them again and again for more help or in case you have a problem?
This is why I strongly recommend going the other route to learning guitar: finding a program for guitar playing lessons online. Let's briefly discuss the benefits of doing this:
Yes, you still get your private lessons, it's just from an instructor on the computer screen instead of in person. The best part is you get these lessons from the comfort of your own home (without paying the ridiculous costs an average musician charges).
You can work at your own pace. You don't have to cram each and every lesson into a half-hour timeframe, worried about getting any and all questions answered and trying to soak everything in for the coming week's practice. This to me is the best part, and the release of pressure from not having such a rigid schedule let me actually learn more.
Last (but not least), you can revisit each and every lesson again and again, in case you have a question or haven't mastered something yet. I use a program called Team Method Guitar, and I'll be honest: with the amount of times I've went back through the previous video guitar playing lessons in the level I was on (which at the time was the Beginner level), I'd have about wasted a few whole sessions if I was taking them through a local shop.
Having access to previous lessons is amazing, and enables you to learn much, much more than you would from a private instructor.
The moral of my rant here is that if you are serious about learning to play guitar (or any instrument for that matter; for me it happened to be guitar), the best way to go is to find a program for how to play guitar online. As I said before, the one I found that rocks is Team Method Guitar, but there are many others as well. Most are bad, but some are good, so it's just about finding what works, or reading reviews on the various programs and seeing if it's a fit for you.
Good luck with your future endeavors though, and if you're serious about playing guitar. Practice! You will get there.
Here's a complete review for Team Method Guitar, the program I personally used that shows you how to play guitar online. Good luck in whichever direction you chose, and remember to practice!