- was the domain related to your expertise, or in a niche that was new to you?
- what made this project stand out from others / appear to have potential?
- was codebase quality a factor in purchase?
- do you inherit things other than software from the seller? EG customers, marketing channels, analytics, etc?
- what was the value-add that made it work under your stewardship but not the seller's Sales / marketing / dev / featureset / etc
- Are you interested in doing this repeatedly?