Thanks 2PWRR,
There is simply NO comparison between a certified helicopter and a home built or experimental.
The process of certification is long, expensive and worth it. A certified helo has govenrment approval that it has the strength, handling qualities and performance required by law. Government engineers and pilots have poured over the design reports, test reports and flight/maintenance manuals to assure that public safety requirements have been met. The manufacturer of an experimental has not done this work, and very likely cannot pass these tests. In other words, an experimental helo has nothing, literally nothing in the way of assurance in these areas.
Are experimentals inadequate? Not necessarily, but you just don't know. Are they cheaper? Yes, they had better be, they are worth less. Are they sub-standard? Absolutely, since they do not meet the standard. Are they a bad idea? No, as long as you know what you are getting from the outset, and as long as you are willing to take the risks.