Should I buy or rent an electric car battery pack?

Some companies give you the option to buy the electric pack while others force you to lease them, what is the best option?

Leasing is almost extinct. The life of current batteries is a lot longer than originally perceived by the general public. It appears that the battery pack will live as long as the useful economic life of the vehicle.

This is a BIG plus for the electric car industry. People are getting more comfortable with the technology.