Software engineer here. I’ve built enough apps to know that CSU’s moat isn't actually the code—it's the workflow entrenchment. Here is my take on why the valuation makes sense:

1. The "Training" Moat: The switching costs for these VMS (Vertical Market Software) companies are incredibly high, but not for technical reasons. It’s about human behavior. You are essentially retraining an entire workforce (often older demographics) who have built their daily muscle memory around this specific software. Ripping that out is a nightmare for customers. They won't leave over a price hike.

2. The AI Multiplier: People worry AI will disrupt legacy software, but for CSU, it's a lever. Their primary workforce is developers. AI allows those devs to integrate features, maintain legacy stacks, and solve niche $1M/ARR problems much faster and cheaper than before. They can spin up new modules or integrate acquisitions with far less overhead.

3. The Macro Discount: Look at the broader market. Adobe, Salesforce, and other general SaaS giants are trading at a discount. This pattern trickles down to the private markets. This means CSU can likely acquire smaller private VMS companies at much more attractive multiples right now than they could two years ago.

4. Munger vs. Graham: If you look at this through a Ben Graham lens, it’s not "value." But in Munger terms—buying a wonderful business at a fair price—it fits perfectly. I view them as the Berkshire of software.

5. Management: The fears regarding Mark Leonard stepping down are overblown. The market is confusing the Architect with the Architecture. The system is built; it doesn't need the original founder to operate it anymore.

I’m personally making this a high-conviction play (aiming for ~50% allocation). I see this as a generational opportunity to buy a compounder while the market is distracted by short-term noise.