$2,500 to $5,000 seems like what I was considering.
Another statistic I like to look at is the 21 BTC holding value. 21 BTC means less than 1 million people club, being on that part must mean big wealth long term for the holders of such amount.
In order to be a millionaire with 21 BTC, we must reach around $47,000
The question is, what are the chances that we see such $47,000 in any of the following bubble cycles? is it possible in 10-20 years?