Sure, I have Ethereum, Waves, Tron, Eos and NEO, I never sold these 5 coins even though I have some coins in the ImToken domet, I have seen posts on waves forum how Waves blockchain is faster compared to ethereum, at that time price Waves is $2 and currently $28, if an old project wants to adapt or adopt some new technology then that coin will always be an option, we just need to be a little patient to see some old coin developers provide some updates like ETH with Post, and Waves with NFT which yesterday can increase the price of wave coins