I started with one AMD Radeon RX 460.
I knew I wasn't going to mine fast with this little guy but I WAS mining. Like I said, you have to start somewhere
Next paycheck, I bought another RX 460. At the time, all the bigger cards had been sold out. I also bought the motherboard, power supply, CPU, and pvc needed to build my rig
Now I'm getting better results but I need more
I'm going to keep buying a graphics card every two weeks. I have been mining for about a month now and so far, I am happy with what little I have made. It's not much but it proves that if I keep going, I'll eventually be able to buy more miners with just the income from mining.