I do have and ender 3 and I am OK with it for my personal use. I wish to buy a new pro printer and I have Too many options in market. I wish to buy a budget printer for a low volume 3d printing business. Which one should I choose? I already have some study and my options so far are Cr10s pro or monoprice Maker pro mk1 or TEVO flash or geeetech A20M.