Turns out, picking up good, cheap wine from Safeway isn't as hard as we thought. But before you go stocking up on $7.50 reds willy-nilly (tempting), consider what makes a bottle more or less expensive. Oaking and aging, which round out flavor but take extra resources—surprise—up the cost. For a great cheap pick, seek wines that are easy and inexpensive to make. The flip side of the coin: some of our favorite varietals really do need that extra TLC (read: oaking) to taste up to par. Here's where you can save, and where you really should shell out that extra $5.