What makes those first internships and analyst years — spending long hours poring over financial models and spreadsheets, drafting investment memos, or staying at your desk well past dinner time — worth it? The first real payday. Business Insider asked its Rising Stars of Wall Street to remember that moment and share what they did with their first big check. For some of these successful financiers, the funds went straight to family or savings, while others chose a little indulgence or a big experience.Here ...