I think Solana pumped due to some massive game projects that released too such as star atlas and many more. Their ecosystem is quite far from metamask extension but they are building their own system and other investors and whales are seeing how it got improved thats why they bought in. Its really amazing from a very low price now solana is kinda expensive. Only If I bought a lot during its early stage. Anyway thats my opinion and I think it could still grow more.
Use cases of a coin promotes it's price so am convinced the game project attributed to the high prices we seeing now and also it's backed by Sam who is a multimillionaire and he even made it known to the mass some time ago that there should sell off sol and he would buy them back at a lower prices, imagine the guts. Well I love the fact that the price is pumping real good but it pains me that I got no sol left, sold so early and now I can't buy back because i don't want to FOMO in to the market or going to buy the top.