Thank you for your comment.

Yes I am also thinking I don't want to sell the stack... it took me a couple years of stacking and weekly DCA to build it and the exchange rate was lower then...

I don't want to give that up right? 21 million Bitcoin for the next 100 years. And how many cars?

I will look into renting. Sure I will have to divert some of my excess cash/flow/would be able to stack less in that same time period... but there's way less opportunity cost.