Is lead generation worth it?
Written by Cameron James·October 29, 2026Quick answer
Lead generation is worth it when you can turn leads into paying customers at a cost that sits comfortably below what a customer is worth to you. It is not worth it when you are buying volume you cannot follow up, or judging success by the number of leads rather than the revenue they produce. Work out your customer value and your follow-up capacity first, and the answer usually becomes obvious.
Key facts
- A lead is only worth what it converts into. Cost per lead on its own says nothing about whether the spend paid back.
- The sums that matter are close rate, average customer value and cost to acquire a customer. If you cannot put a number on each, you are guessing.
- Definitions of a lead vary wildly between vendors, from a raw form fill to a sales-qualified opportunity. Cost-per-lead benchmarks are therefore hard to compare, and most published ones come from vendors selling something.
- Speed and consistency of follow-up decide more outcomes than the lead source does. A lead nobody contacts is a cost with no return.
- Email outreach has rules. Google requires bulk senders of more than 5,000 messages a day to Gmail to authenticate, offer one-click unsubscribe and keep spam rates below 0.30%.
- In the UK, people have an absolute right to object to or opt out of direct marketing at any time, according to the ICO.
- Channels with high volume and low intent can look cheap per lead while costing more per customer than slower, narrower ones.
Do the sums before you spend a pound
Forget industry averages. The only cost per lead that matters is yours, set against what a customer is worth to you. Say you close one in ten leads and a customer is worth £3,000. Then a lead is worth roughly £300 to you, and anything you pay above that loses money, however good the dashboard looks.
Most people skip this and compare themselves to a benchmark. Those numbers mostly come from vendors, and a "lead" can mean anything from someone filling in a form to a booked sales call. I would not build a budget on one.
Where it goes wrong
The usual failure is not the channel, it is the gap after the lead arrives. When I ran growth at a couple of startups I watched perfectly decent leads go cold because nobody replied for three days. Volume without follow-up is just an expensive list.
The other trap is chasing cheap leads. A pile of low-intent form fills looks great per lead and terrible per customer. If you sell to a small number of high-value accounts, a handful of well-researched conversations will beat a thousand downloads, which is why I think about lead generation versus sales as one problem, not two. And if you do outreach by email, the rules are real: authentication, easy unsubscribe and low spam complaints are not optional.
Start small and measure the right thing
Run one channel for a month, track leads through to revenue, and only then decide whether to scale. Judge it on closed deals and payback, not on lead counts. For smaller businesses I have written up what tends to work in SMB lead generation.
One place I do have a product opinion: if your lead magnet or proposal is a PDF, you currently learn nothing after you send it. LiveDocument lets you put a short video walkthrough next to the document behind one link and see which pages got read. It will not find you leads or fix your follow-up, but it does tell you whether the thing you sent was actually looked at.
The Bottom Line
Lead generation is worth it when you have a repeatable way to close what you generate and a customer value that covers the cost. If you do not, fix the follow-up before you buy a single extra lead.
Written by Cameron James