For the next 5 years $10k is not impossible for ETH. if used as a long term investment, it should be considered that the market is currently in a bear market transition, so with a current value of around $2000 I think it is quite high, so just wait it's around $1200 before investing in ETH in the long term
are you sure if the price of ETH can go down to $1200? if in my opinion it is very difficult, so instead of taking the risk to buy ETH when the price drops to $1200, then I prefer to invest in ETH at this time, because in my opinion the price of ETH is already low, therefore I prefer to buy ETH right now instead of taking the risk to wait for the price of ETH to $1200, so that if the price of ETH goes up and doesn't go down, then of course I won't regret it and have already made a profit from investing in ETH at this time.