Thanks - I was deliberately vague with that figure as I didn't have the exact figures in my memory. Checking around again it appears that maybe the level to breakeven for the cost of renting a typical server might be about 100?
One of the witnesses (dang) just quit being a witness because he couldn't break even, even though his own voting power was big enough to give himself a boost up to around the 100 mark. This is something I am new to, so am learning as I go :)
Btw, it would be great if you would spare me one of your 30 vote slots - are there many witnesses that you support and recommend? Besides voting for you, I am currently only voting for about 5 others who I know from communicating on Steemit. Cheers!