Somethings Get Left Behind On Technology Train

You with all the advancements in technology there are still items that have yet to get an upgrade or two. Granted, if you were to buy a brand new piece of equipment then you are sure to get something that is a little more top of the line, but what if you can't repurchase something like gymnasium equipment, how do u know how accurate the equipment is ??? I spend my lunch hours in a gym, and although the equipment is new, it is still lacking digitally. Some items are still battery operated, and others are simply not calculating the heart rate, or calories burned properly. The only thing that seems to work right is the timers, and even then they are pretty inaccurate. Why is the fitness world being left behind??? Is there much more out there in terms of upgrades to existing equipment, or are we simply doomed to repurchase extremely high priced equipment to begin with???