How many times should I buy stamina daily in NTE? Stamina purchase cost-effectiveness

This stamina-purchase page is more useful when it explains **whether stamina buying should be treated as a progress-chasing tool or as a recurring spend habit, and when different spend levels should actually keep doing it** instead of preserving one fixed rule about the 'first few refills always being best.' For current players, the practical questions are whether there is a real progression push underway, whether stamina buying crowds out more important pulls or growth resources, and whether the current version pace is worth converting extra currency into time.

A safer way to judge stamina purchases is:

1. First ask whether you are buying stamina to break a real story or progression wall or merely spending out of routine

2. If the current version does not create meaningful pressure, mechanically buying to the same cap every day may return less value than keeping currency flexible

3. For lower-spend players, the key question is usually not 'can I buy it' but 'is the progress gained from this refill actually worth the trade'

So this page now focuses on timing and value judgment for stamina purchases instead of preserving one fixed refill count as the only answer.