If CEX is offering a good amount you should take. I did also join bybit $DOGS custom deposit event and that a spinning event where I got almost 150k $DOGS free. I also got $DOGS on binance as a deposit bonus.
My suggestion will be that don't go for exchangers rather than reputated one. You can get scammed by exchangers also cause they they are not decentralized they are centralised.
All though it's up to you that you will use it or not but after getting the you can with your fun if you are not comfortable with that CEX.