But you already know this, so you've probably played for a while. I think the meaning is if you start playing tennis, use the 20$ one. Then if you manage to we

But you already know this, so you've probably played for a while. I think the meaning is if you start playing tennis, use the 20$ one. Then if you manage to wear it out, buy a good one. You shouldn't buy a 2nd 20$ one, ever.