While more expensive, going the OEM route is the path of least resistance if you should ever have a problem with a starting issue of any kind.
90% of the problems with aftermarket is the installation and how much attention to detail the installer took to properly installing it.
Lastly, if you ever take it in to any dealership during warranty or any place after warranty for a start issue, they are either gonna charge you a premium for the aftermarket start system being installed or not touch it at all. With an OEM system, they can troubleshoot it properly rather than try and decipher how an aftermarket setup was installed.