You can learn a lot about different beers this way. If you plan on a lot of rounds, it's a good idea to bring along an extra person as designated driver. There are an endless array of beers to challenge your taste buds. Over a thousand different beers are currently available. Aside from the American pale lagers which taste roughly the same, many have their own distinctive flavor.
Variety is the spice of life.
Now I'm starting to sound like a beer commercial but the plain truth is that statistics indicate that most people stay loyal to the same brand of beer throughout their life. But I do mean to suggest trying something different once in awhile. You might be surprised what you find. Give it a chance. Give it some time.