Simplicity is definitely part of it! But the value/price alignment piece is also important. Take Hacker News. If they charged $50/mo, I'd pay that. But if HN c

Simplicity is definitely part of it! But the value/price alignment piece is also important. Take Hacker News. If they charged $50/mo, I'd pay that. But if HN charged $1 per homepage visit, I'd start visiting a lot less. Maybe once or twice a day, but not 20x/day. Both $50/mo and $1/visit are simple pricing methods, but my value is not the same with each visit given the homepage doesn't change much hour by hour. So maybe it's really worth $5 for the first visit of the day and 25 cents/visit after that, and thus the $1/visit system wouldn't work well (for me).