Well $80 is a good price to buy but it will be much wiser if we started buying it when the price was still very low. Solana was launched way back April 2020 and even started with a low price as $0.75 to a high of $214.96 in early september. Although it is currently experiencing a decline but i don't think it will fall down to $80 this time. I think it will be a waiting moment for you but if you really believe in the potentials of solana, you can still buy it with its current price as long as you will hold it for long term.
I've bought the Solana for $100 and still hold it to this day because I don't buy in large quantities so I don't really think about it, but I'd also sell it if the Solana could hit $200 again this year and will try to buy again when the price is close to $100 again