A KB of data could fit ~ 10-15 players, java object header sizes should also be taken into account. This calculation does not include SimpleTextInput which is created for storing Components of baltop entries, it also eats some memory (propably even more than the LinkedHashMap<UUID, BalanceTop.Entry> topCache which is discussed).

But it's not just about memory. I've often seen people want to limit the balance to, say, three pages, because in practice, there's another side effect of showing so many entries. Players can simply iterate through balance pages and thus see the exact amount of money that other players have, which isn't desirable on every server (after all, the 'essentials.balance.others' permission isn't given out to everybody).

I don't see a reason not to merge this small change, but if you have any concerns, feel free to ask