Idea is good but execution can be better. Rather than buying 1 bitcoin for over 2700USD, I would prefer to buy 15000 coins with a mix of IOTA/NEO etc promising altcoins that are worth around or less than a dollar today.

Why?

Bitcoin may go to 500,000 sure. But these coins if they go to even 1000 USD in 30 years the return will be around 15million.

I think the same investment strategy is true for new comers who are in crypto for long run.