I used to drink, but I gave it up in 2007 when God made it clear to me that it isn't something He wants in my life... BOTH drunkenness AND casual drinking. Many people will defend casual drinking because they claim they can control it, and maybe they can... not getting drunk and not going against what the bible says... but...
A major reason I gave up drinking publicly (in front of non-Christians and Christians alike) is because I'm called to be an example of Christ. The drunkenness is obviously wrong, scripture is clear about it, but what the bible says about casual drinking may not be clear to many. Paul, however, makes a statement about being an example to other believers in Romans 14:
19 Let us therefore make every effort to do what leads to peace and to mutual edification. 20 Do not destroy the work of God for the sake of food. All food is clean, but it is wrong for a person to eat anything that causes someone else to stumble. 21 It is better not to eat meat or drink wine or to do anything else that will cause your brother or sister to fall.
22 So whatever you believe about these things keep between yourself and God. Blessed is the one who does not condemn himself by what he approves. 23 But whoever has doubts is condemned if they eat, because their eating is not from faith; and everything that does not come from faith is sin.
God used this scripture to make me see His desire for me to be a better example to others.
We have to keep in mind that there are eyes constantly watching us Christians, as if unbelievers are just waiting for us to mess up, to justify that their actions are okay and that they are no different. Jesus was also watched by people, tested as well, to see if he'd fall.
If an unbeliever sees you, a Christian, drinking publicly (not necessarily getting drunk) and then leaves the place you're at, how will that person know whether you're just having one drink or drinking to get drunk? Now that person can easily make a claim that drinking and drunkenness alike are okay because he or she saw a Christian doing it... and, that person may be no different from a Christian after all... so why come to Christ? --- it doesn't take much to turn an unbeliever away from Christ versus bringing one to Christ.
As far as drinking publicly (not necessarily getting drunk) with other Christians. You may be drinking with another Christian that may NOT be like you (someone who can handle a drink and not get drunk), and what if he or she is struggling with alcoholism, trying to give it up but is tempted to do so by your actions because you decide to drink publicly? You've now become a stumbling block to your brother or sister.
Lastly, is it really worth it? Drinking is an act that pleases self. It doesn't edify others. Some drink because they enjoy the taste, others the feeling, but how does drinking really benefit the Kingdom of God? It's obvious that drinking has many cons, but pros?
Drinking (not getting drunk) at home ALONE may be different. You're not directly affecting others around you. No one sees you.......... but God. So this should be something you discuss with God, let him answer that question.
Some questions to ask yourself:
What is your reason for drinking?
Do you want to be the best example of Christ that you can be? ... If yes, will you abstain from alcohol for him?
Do we see Jesus drinking? ... We see him getting his fill from the Holy Spirit.
These are just some things to consider

Ultimately the decision should be made between you and God. Pray about it.