I am a garage caster, one 10 pound pot and a couple of moulds, Lee Liquid Alox lube and Lee push through sizers. I have fun with it, wqhich to me is goal number one, and I produce boolits, (proper castboolit.gunloads.com speak) that shoot well in all my firearms. It adds one more variable in the reloading equation, making experimentation just that much more fun.
castboolits.gunload.com is a GREAT resource, as is this forum. get the Lyman cast bullet handbook, and go slow, but have fun!