I think i bought the device for around 3.000
A single trip to the mechanic
If u get charged 1.000
If u pay him 3 visits
Bill 3.000
So arent u better off having one
Plus u might be on g.t road for instance and an error code turns on
U can check urself and do something instead of paying the mechanic 5.000 to come and check it up in the middle of ur journey
Prius mechanics are mostly in big cities like lhr, khr and isb etc
So no big
In my opinion its a wise investment having driven a prius from 2007
Anyways comes down to personal choice
Tolerance bro Tolerance
Peace for Everyone !