You are a cash-cow to the developers of this game. 'Events' paywalled, 'New Character unlocks' paywalled, 'Gearing upgrades" paywalled. Even if you spend money (not cheap) you are gambling. Most things are orb based, and RNG heavy. EG; you could spend $89 on orbs, hoping to get a item, character shards (Spending doesn't unlock a character for you. Just part of one) or anything else, and get the worst item/character/etc.. from the orbs. FTP don't bother you'll be 3 to 4 steps behind the spenders.