The Swix T72 digital iron is a professional tool that you can own and use even if you're a casual skier. Do you 'need' it? Maybe not - we sell less expensive irons that get the job done, but the T72 makes waxing that much more enjoyable.The thick sole plate and ceramic heating element in this iron keep the temperature very consistent, and of course the digital temperature control provides a quick-heating and accurate temperature.
Possibly of greatest importance the iron is very durable, and can almost certainly handle more than you can put it through, even if you're waxing many skis daily. Whether that's the case or not you can know that with the T72 you're getting the best wax available, assuming your technique is up to snuff :)