I have had my class two for 27 years and other than a short army stint and 11 years TA I have not used it until the last year or so (was a bus driver for many moons) but a medical to get the entitlement back and I am on more money than a good few class 1 drivers and loving my job, a job I never thought or had any intention of doing…well weird, 
An investment and a feather in you cap (think CV) for now and the future.