UTXOs of less than 10 million sats will eventually be economically inconvenient to move on chain in the future.
UTXOs of less than 1 million sats are already becoming a bit expensive to move with the current fee environment.
I recommend stacking in a self custody lightning wallet like nostr:npub148qm45zettnf6ekgkatnyfadunxwjpu8sy88mjdsgwc5f202d93qmejra7 until you have a large balance. Then you can splice out to your cold storage address creating a large UTXO.
Watch how cheap and easy it can be to stack small buys 👇👀