To avoid having too many members and therefore not losing interest, members must pay a monthly contribution. However, it's not the same for everyone. It is equal to the number of websites at the time of your registration plus 1.
By joining Megaillon now, you'll be the 2nd website. Your monthly contribution will be only 2 €, less than 1 € per website where you are posted !
The monthly contribution for the 4th website will be 4 € while yours will remain at 2 €, less than 0,5 € per website.