THE MATH
What a dead number really costs you
Data price is the smallest number in your cost stack, which is why arguing about it in isolation is a trap. Put a dollar figure on caller time first and the whole comparison snaps into focus.
Managed cold calling generally runs $1,500–$4,000 per caller per month all-in; unmanaged offshore dialers run roughly $5–$7 an hour, with the QA burden landing on you. Take a mid-range managed caller at $2,000 a month working twenty days at eight hours: that is 160 hours, or $12.50 an hour — about 21 cents a minute.
A disconnected or wrong number does not cost nothing. It costs the ring-out, the disposition, and the context switch — call it 25 seconds. At $12.50 an hour, one dead number burns roughly 8.7¢ of labor. At a $6/hour offshore rate it is about 4.2¢. Sit with that: a single wasted dial costs about the same as an entire record from a penny-per-record tool, and more than half the price of a record from a premium one.
Now price the gap. On a 10,000-record list, $0.15 per record is $1,500 and $0.01 per record is $99 — a delta of roughly $1,400. Divide that by 8.7¢ and you get the break-even: the premium file has to eliminate about 16,000 wasted dials across those 10,000 records — roughly 1.6 fewer dead numbers per record — just to draw even. Framed the other way, $1,400 buys 112 hours of that caller's time, which at ~100 dials an hour on a single-line dialer is around 11,000 additional dial attempts you could have made instead.
Sometimes the premium file clears that bar. On gnarly probate and trust-heavy lists, it often does. On a straightforward absentee-owner pull in a mid-size county, it usually does not come close. The honest answer is that it depends on your county, your list type, and your month — which is exactly why you test rather than argue.
One more line for the model: your cost per right-party conversation is (data + telecom + caller hours) ÷ right-party contacts. Data is typically the smallest of the three terms. Optimize the file for how few dials it takes to reach an owner, not for the sticker price, and the spreadsheet will point you at the right vendor on its own.