I had the same thought. Whenever I discuss OO with my LV developer friends, I hear, "yeah, but I can do all that stuff without OO". Sure, you can do just about anything OO can do without OO. This applies to every programming language. You can do everything in C (without objects) that you can do in C++ (with objects), but why would you want to?
For me, it comes down to this: Do you want to learn a bunch of tricks to get around the (former) limitations of a (formerly-non-OO) language (which may or may not be portable to other languages), or do you just want to learn OOP and code like everyone else in the developed world?
-Jamie