For players looking to purchase high-end Tier 16 buildings, the numbers clearly show that waiting for Double Gem events and using gems to buy buildings provides substantially better value than purchasing with Building Bucks directly.
When comparing the actual dollar cost of obtaining the same building through both methods, Double Gem purchases consistently outperform Building Bucks, and the advantage becomes even larger when paired with Lifetime Gem Bonus Perks that are earned as you progress in the game.
