PS muay thai is a sport, not a martial art. If you got bored of wrestling you may get bored of this too, but don't let that put you off trying it, just something to keep in mind.
Muay-Thai is not a sport, Its a deadly art.
Some 100 years ago, when the Kings of Thailand used to fight on elephants, they had 4 fighters who used to fight with 2 swords at a time. Each of them will stand in front of the each leg of the King's elephant because if elephant gets wounded, King may fall and can be killed by enemy. So King used to deploy 4 brilliant fighters on each leg (may be 5, one for front but I am not sure), they were experts in both armed and unarmed fighting. When during battle a fighter looses both of his swords then he would use a style of fighting, a brutal and deadly style that will kill the enemy and enemy may be using swords. That art used 8 limbs of the body to kill the enemy, that art is known as Muay-Thai, it originated in the battle. Now people in Thailand use it as a sport, which is a different case. But if you can come across some real old Muay-Thai Master who knows all the fundamentals of Muay-Thai, I highly recommend you to spend as much time as you can with him (and same is true for the real Master of any art)