Three things to lock before you publish a price.
1) The value metric.
What goes UP as the customer gets more value? Seats? Volume? Workflows? Pick the one that aligns your revenue with their success, not their pain.
2) The anchor.
Don't pick "$29" because it sounds friendly. Pick a number that says something about the buyer you want. $29/mo signals self-serve. $1,500/mo signals "we will deploy a CSM with you." Both are fine — be honest about which game you're playing.
3) The escape hatch.
Build in a way to change the price without re-papering existing customers. "Grandfathered" is a feature, not an accident.
Operator move: ship the price publicly, watch what your top 10 deals actually look like for 60 days, then re-anchor. Don't agonise — instrument and iterate.