I got an EZ-Pass transponder and associated account because it saved money on my multiple drives through West Virginia to and from Missouri to see Deborah. It came in handy while driving through the Northeast because it was easier than stopping for tolls.
I wasn’t sure if you need money on account for toll payment to register, but it turns out you don’t. I have my account set to automatically refill my balance when it drops below $10, so I don’t even need to worry about paying a monthly bill later.