Hi,
I quit counting when I hit the 10,000 drilled mark and that was a few years ago. I trained my replacement and retired 3 years ago. I still advise and work with several area pro shops but I drill my own equipment and some for teammates at my home. Good bits are a must and can run $30+ each. If you have a k-mart in your area, check with the manager. Many of them used to drill balls in the 1980's-early 90's and have the equipment just laying around in storage. When the one closed in our area, the drill press, jig, bits, and Brunswick measuring ball sold for $350 total.
Good luck
Matt