Right, there are many successful projects that don't hold a bounty campaign. They choose other ways to build a large community that can attract investors, for example by holding an IEO on a global exchange top. There are also those who maximize their products and collaborate with other large and trusted companies. However, the bounty campaign is one of the best choices for building a community, as long as it is managed well so that its main goal can be achieved.
Of course, the project prefers to pay to be able to hold IEO on famous exchanges. Still, the cost to be ready to IEO on prominent exchanges is not small, the prices are higher than the costs incurred to create a bounty campaign, but the success of IEO on well-known exchanges is higher compared to holding a bounty campaign.