Gotta disagee wholeheartedly with NSR,
While personal tastes vary I have never been disappointed with any wine rated 90 or above by WS or Parker that I paid $30 or less for. While they may not be perfect for my palate they tend to be well made and well balanced wines.
If you buy in tasting rooms as a novice you will undoubtly end up with a bunch of sweet wines you will never find the time to drink again. Prices in tasting rooms are the highest anywhere. Most wines I purchase are 25 to 50% below what they sell for in tasting rooms.
As for BevMo be careful when they have their buy 1 get another for 5 cents sales. Those wines are usually worth less than 5 cents.