Coinmarketcap listing LPC would be big news and another step towards an increase in value. I would say that it would definitely be a good idea to buy now before that happens. When LPC gets listed on there who knows when LPC will be less than 500k satoshi again.
Being listed in CMC is good news which might catch massive attention of potential investors.
However, the whole crypto market is down, which has strongly adverse impacts on LPC.