If some predictions are realized in future and BTC reached five-digit numbers it will mean that many today users will get chance to fulfill a desire or make some dream come true.
Hmm, for bitcoin to reach 5 digit numbers would still need a lot of time as it is growing for sure but the process would be quite slow as it does not keep growing always like how it is growing right now but it stays stable sometimes, so i think someone should always keep earning them instead of waiting for a price rise in order to get rich with it.
If you buy below BTC10 and just waiting for bitcoin price reach 5 digits, seems ridiculous and it could takes like 30 years to become rich.
Always keep earning and savings it would lead to the same situation if you can't get at least BTC1 per month.
Last thing you need to do is invest those amount to create second source of income.