Based on the following information from Help Docs in Suite Answers (listed below), is it possible to have a Developer Account in production.  It sure seems like it from this help info.  If that is possible, how do we go about making that happen.  How much more does it cost to have a Developer Account role type?

"When the development account is provisioned, NetSuite makes available the same features and NetSuite-provisioned SuiteApps that are available in your production account. NetSuite development accounts are isolated from your production account, in which you can develop and test new applications and customizations without worrying about affecting your production account ... Actions you take in development accounts, such as transaction entries, record deletions, and form customizations, have no effect on your NetSuite production account. "