Servery for Small Linux

I took the day off work today. I spent a half day on surveying for small Linux. I was interested in Linux server. Since I want to develop simple web applications, I thought it is very useful to use Linux server and deploy applications on it. I preferred a small, reasonable price, and low energy one. I found Beaglebone was the best choice. It is very small so that we can put it on my hand, its price is very reasonable about seven thousand yen, and it takes low energy less than 5whr. I would like to tell my wife when the opportunity comes.