For nonprofits under $1M revenue, Bloomerang or Little Green Light ($99-$399/mo) is always the right answer — custom builds at $150K+ never amortize at that size. Salesforce Nonprofit Cloud pays off for organizations $3M-$50M revenue, especially with the 10 free seats via Power of Us plus multi-program complexity. Blackbaud products hold on for legacy fundraising shops where switching cost dominates. Custom builds win for nonprofits $25M+ with unique program delivery — international NGOs with field data collection, advocacy orgs with constituent-matching-to-policy, case-management organizations — break-even vs Nonprofit Cloud lifetime cost is typically month 28-36 at $50M+ revenue. Above $100M revenue, custom + integrated fund accounting (Intacct, MIP) usually wins.