Lead forms are a tool, not a strategy. Chasing cheap leads without a proper measurement framework is a fast track to wasted budget. I learned that the hard way - early on, lead forms were crushing it on volume, so I doubled down. But when I actually mapped cost per qualified meeting and close rate, the conversion rate from those forms was garbage compared to something like a landing page with a retargeting funnel.
The real issue isn't the form itself, it's the targeting, the offer, and the creatives. Most people set audiences way too broad or too niche, then blame the format. Generic stock photos or brand-heavy ads don't cut it. You need UGC-style videos that speak directly to a specific pain point your ICP has. That's what moves the needle.
Also, lead leakage is a killer. If you don't have a proper follow-up sequence - SMS, email, call within minutes - you're losing 50-60% of those leads. And without a qualification step or case studies ready to go, the sales team won't close them anyway.
Best advice: run lead forms alongside other campaign types - instant forms, messenger, landing pages - and track actual cost per meeting booked. Use a spreadsheet, not gut feel. Let the data tell you which channel actually drives revenue. Lead forms are just one variable in the equation.