Yeah, but consider the fact that sitting at a computer all day doing the same thing all day will inevitably elicit boredom and/or tiredness which will lead to hasty/negligent decisions with the result of having some tomb boss killing you.
And anyway one day is approximately 24 hours which is 1440 minutes. Doing a thousand a day would mean doing 1440/1000 = 1.44 tombs in a minute, which is pretty much not possible anyway : )