Airdrops coin price is unpredictable because it’s totally depend on exchanges listing, if a project will go list on Binance then price impact will high, when you can expect big things but if listing in low tier exchange that will be different that's it. Of course no risk no gain, but i will never take risk with MEME coins, and if somehow i invest it will my comfort zone.
As you say, you can expect more money if you list on a big exchange like binance. This is absolutely wrong, if the project increases the supply with less liquidity then the price of the coin will be very low which will not be profitable at all. It's just like binance there are many other big exchanges that don't go down much from the starting price when listed. But memecoin is a different matter. Due to the high total supply, its price is very low, but if it is listed on a major exchanger, it pumps a good amount. And investors earn good profits. But there is a lot of risk here.