The Breakeven Math for Bundling Any Recurring Tool Spend

def bundle_breaks_even(bundle_price, items_used_separately, expected_new_items_value):
"""
items_used_separately: what you'd pay buying only the things
you currently use, at full separate price.
expected_new_items_value: your honest estimate of what you'd
pay, separately, for whatever gets added to the bundle
during the term — zero if you don't trust the vendor to ship.
"""
total_value = items_used_separately + expected_new_items_value
return bundle_price <= total_value, total_value - bundle_price