Holding Bitcoin is a good idea, but it is more risky if you move your money anywhere other than Bitcoin. The ton/memecoin ecosystem is your own business, if you can deposit your money here, you should do so at your own risk. However, I prefer Bitcoin, the risk is much lower and the potential for greater benefits is higher if you hold it for a long time.
Looking beyond bitcoin must be the beginner's mistake for few people and some other people do call this as greedy but I do see this as looking for maximizing the opportunities and every opportunity does not need to be ending in profit necessarily. So, risking in memecoins after securing most in bitcoin may be a right approach but risking at least level would be highly recommended. I never bother when I am checking whether it is based on ETH or BNB or TON or SOL, but here OP is confident about TON based memecoins but not sure what a base coin got on this, I am sure no control over other than smart contract provision.
One or few memecoin may become successful in 2026 which again will ensure that there are enough memecoin hunters to exist for 2027 and beyond. Yeah, other than this I could not find a reason for why 1 out of 100 memecoin is becoming profitable.