Casino chips for silver

I'm curious what the general price is across kingdoms for silver.  I've sold 21 M for 600k chips on the regular.  I've seen posts about other kingdoms selling 10 M for 600k.  That's a great deal for the seller!  I tried 15 M for 600k today and was told it was too expensive.  The guy responding said he sold 65 M for 15k gold or equivalent of  about 950k chips.  I think he's too cheap or isn't able to sell that often.  What's your price?

Winning Game of War without spending money...

At first blush it seems the only path to achieving great success in GoW is through your credit card.  I have a different way.

Through the use of hyper farming and resource trading for profit I've been able to accumulate a good deal of gold and speed ups to increase power quickly and steadily.  

To be sure, spending real money is faster but long term success is going to rely on developing some type of business operation in game unless of course you are one if the 1% of the world with 90% of the wealth. In which case, please gift me casino chips please?