Good to know. There is a balance, of course.. not just between break in period versus life, but also in saddle quality. An overly saggy saddle will obviously be worse than a firm but slightly flexible saddle.
I do about 250-325km a month, always in under 20km trips. 500-ish km is the theoretical likely maximum per month. I don't want a protracted break-in period of several months to a year.