Dog
The canine companion represents a appreciating asset in the portfolio of life satisfaction. Longitudinal studies demonstrate dog ownership correlates with reduced cardiovascular mortality, decreased depression rates, and improved social integration across the lifespan. The average dog provides 10-13 years of companionship, with the human-animal bond typically strengthening over time. Memories of canine companions remain cherished decades after the relationship concludes. The dog's value compounds through accumulated shared experience.
Hangover
The hangover offers no long-term value proposition whatsoever. Each occurrence represents pure cost: time lost, productivity sacrificed, health marginally degraded. Cumulative hangover exposure contributes to accelerated aging, cognitive decline, and increased risk of alcohol use disorder. The only potential benefit, loosely termed 'learning from experience,' proves remarkably ineffective, with studies indicating hangover severity does not reliably reduce subsequent alcohol consumption. The hangover takes without giving, a fiscal black hole in the economics of human experience.