Either Solana good for short or long term investment, never will I make that attempt of selling my btc nor eth. But I sure can sell some of my shit coins to buy Solana as it's proven to be one of the best in crypto world too.
That's the ideal thing to do.
Sell those coins that are worthless to you but has brought you some money and use that to buy the ideal coins that you want.
And for example, buy solana with those but do not sell ether and btc for it.
If you don't want to miss the opportunity with Solana, then you don't have to take the risk selling your bitcoin and ethereum because they are sure profits already in the long run. Well, if you have some extra money, then take time to invest into Solana even with a small amount. There might be no guaranteed profits in the long run, but it will never give you regrets once you lose because you only invested in an mount you can afford to lose. But if it will be a huge profits in the future, then at least you have your own share of profits too, although not big but still worth it.
It is a better strategy that no selling of bitcoin and ethereum that will happen.
Aside from that, having a spare money can allow you to buy solana if you really want to have it. It is true that eth and btc are the best for the long term.
No doubt about that. BTC and ETH are some coins which are going to stay for the long term.
Although SOL is a nice coin with huge potential it is still relatively new which makes it stay at the lower edge.
But at the same time if we think from an investors point of view then SOL is bound to give better returns in the short term than BTC and ETH.
So I would put a little stake in solana. Not selling BTC and ETH is still a good option but not buying on SOL would seem like a mistake.
Ofcourse we can sell the shit coins and use the spare money or at least a minor portion from BTC and ETH to invest in SOL.
May be we can buy back the BTC and ETH later when we get the decent profits we are aiming for.