The amount people bid for the millennial demographic on sites like Taboola varies widely. It depends on factors such as the industry, competition, and campaign objectives. Generally, bids for this demographic can be higher due to the value of reaching millennials, who are often engaged with digital content. Advertisers may bid more for millennial audiences in niches like fashion, tech, and lifestyle. The bidding process in Taboola is auction-based, so the amount you bid will also depend on how competitive the space is at any given time. You should test different bid amounts to find what works best for your campaign.