Exactly right. There is diminishing returns as well. If you had put in 10k when it was at even at $118 last week, you'd have doubled your money and have $20k. BUT, if you put in $10k today @ 233...you'll have to wait till it's at 466 (if/when/ever) to have doubled your money. And the values go higher, the exponential rise will obviously slow down, as will the speed of gain.