Грамматика и Лексика

Преобразуйте, если это необходимо, слово POPULAR так, чтобы оно грамматически соответствовало содержанию текста.

Do you think that e-books will one day replace paper books? I don’t think so. However, they might become even __________ than they currently are. E-books clearly possess great value and as technology advances, I believe they will become increasingly common, but I think that printed books will continue to have a place.