[munro]

No model is perfect, but some are useful. Their "baseline LTV" looks at the sum of listings on their platform (plus other features), then tries to forecast the next 365 days — so this should indirectly capture people coming and going. I think their cannibalization model is quite clever as well.

Going deeper with modeling users might yield some tighter estimates, but I imagine this gets estimates far closer than some simple accounting formula, and likely helpful for budgeting a year out — but it would have been nice to have seen some performance metrics.

[mmasu]

I also think the cannibalization model is clever. The baseline model is however a bit underwhelming, as bookings can be misleading by themselves - you have cancellations, impressions, and so forth. For example if you only look at bookings in next 365 days, new listings will be penalized. But as you said no model is perfect :-)