To have latest core functionality.
To be able to install latest latest plugins according to your requirement.
How complex is the upgrade?
There is no direct method of upgrading a website from Joomla 1.5 to 2.5/3.x. It is actually a migration in multiple steps. Like content and images. Also template needs to be optimized for newer version.
We have a team of experts available and ready to upgrade your existing Joomla setup without effecting any of your existing design or functionality.
We are offering the prices as low as $99.