Worth it to submit if I only have 3-4 cards?

I have 3-4 cards (nothing pricey or worth selling) that I wanted to send in. Is it worth it? Should I wait until I have 10 and do that bundle? It’s mainly to keep them looking nice and I like the TAG slabs. Cards are jungle 1st edition cubone (my fav), Wailord (Journey together holo), and bulbasaur/ivysaur Japanese m1l mega brave.