Electronic tolling isn't going away. If anything, we're going to see a whole lot more of it in the years ahead.
I've had a PikePass account since the late 1990's because using the cash lanes finally pissed me off enough to get a PikePass. Some clown in a pickup truck hauling a trailer, arguing with the toll booth attendant over how many axles he had, causing a traffic backup, is what finally convinced me to get one. I've loved speeding past those cash-only lanes ever since. I convinced my girlfriend to finally get one for her vehicle when we were having to deal with a really crappy bill changer at one toll booth after midnight. The humans weren't in the toll booths 24/7.
It's not difficult to get a PikePass or keep the account maintained. I strongly advise anyone using Oklahoma's turnpikes on any sort of repeat basis to get a PikePass account or compatible toll tag from Texas, Kansas or Florida. PlatePay tolls are often more than double the cost of the PikePass rate. The OTA often lets motorists know this by listing rate comparisons on signs mounted to the toll tag reader gantries.
While it's possible to shun-pike the H.E. Bailey Turnpike between the Red River and Oklahoma City, a motorist will blow a lot more time and maybe even more in gas money staying on the "free" roads. Oklahoma's turnpike tolls are a bargain compared to most other states.
At least they are when you pay the PikePass rate.

That is one truly awful big green sign design. And there is a few others like that along those last few miles of I-44 just before reaching the Red River. Some "genius" at ODOT mis-read MUTCD guidelines about letter sizes of highway fonts. The lowercase letters have to be at least 75% the height of the uppercase characters. What do these guys do? They take the lowercase characters in Series Gothic or Clearview Highway and scale them down to 75% of their normal size. Just freaking stupid.
And ODOT has replaced graphics on these signs with the same errors not fixed! JFC!!!