The resilient rural lifestyle retailer dominates its space and has a lot of room to grow.With the S&P 500 hitting record highs this week, it's becoming increasingly difficult to find attractive stocks to buy. Many stocks simply look either fully valued or overvalued. But a close look reveals that there are still some stocks worth buying -- even after their recent run-up.One stock that still looks attractive despite already rising 15% this year is Tractor Supply (TSCO 0.09%). Sure, the dividend-paying stock ...