How high can ETH go?

Ah, you're asking about the potential upside of Ethereum, eh? Well, let's see... Cryptocurrency markets are notoriously volatile and unpredictable, so it's always difficult to give a precise answer. However, based on current trends and the underlying technology of Ethereum, there's certainly potential for significant growth. The platform's smart contract capabilities and widespread adoption among developers make it a powerful force in the crypto ecosystem. But remember, investing in crypto is risky, and prices can fluctuate wildly. So, while I can't give you a specific number, I would say that the sky's the limit for Ethereum - but only if you're willing to take on the risks involved.