You can investment your money in land, house, gold, silver, stock markets, fixed deposits & savings in banks, start some business or invest in some business (like restaurant, hotels etc..)
Actually Bitcoin and crypto currencies are not required/unwanted
If you really think bitcoin is unwanted or not required, why are you here in the bitcointalk that really talks about the advantage of bitcoin?
Yes, all that you said above is true, you can invest on that. But investing in bitcoin has a far greater opportunity because you can use bitcoin almost anywhere. And its really to easy carry, unlike house, or gold.
you can even store it in your mind, you just need to remember your private key. And that thing can't be done with savings in the bank.