It's the same as gambling. You will pontentially make some sweet profit at the beginning, but as you continue doing this for too long, you will inevitably hit unrecoverable losses. Therefore, I don't even consider it to be an investment, but gambling with your funds. There aren't positive long term expectations when purchasing memecoins, as they aren't solid and sustainable, rather they are solely driven by speculation.
It's different from Bitcoin and its main altcoins pairs. The tactic of early entries isn't something new, anyway. It has been highly used during the hype of ponzi and hyip schemes on crypto universe, but as we can see it didn't go well, since the trend disappeared and somehow transmuted into memecoin tokens, which took the previous popularity to itself.