So is their a discount for purchasing more than 1 copy of XenForo? How many copies before you receive this discount? Does this discount go up the more you buy? Does this discount also apply to the add-ons .... ie... Advance Search, Resources? Does this discount apply to renewals also? Must everything be purchased all at once or does it accumulate... ie... I buy 1 copy today, another copy a week from now ?!