Firstly, no one will ever steal it off your desk! That's partly because no-one else will have one so you'll know it's yours and secondly, no-one else will know how to use it because it's Reverse Polish Notation and doesn't have an "=" key.
But seriously, this is a design classic which does 99% of everything that most people will ever need. The unusual landscape key layout is quirky but logical. When you get used to it, you'll never want to go back. It's expensive, but also durable. Battery life is also pretty good.
It will also go on forever. I know someone who still uses the one he bought when he first started work - it's a 10C that's now 30 years old and still works perfectly.