I think it depends on your relationship. Some women hate the idea of their SO picking out their lingerie since choosing their own gives them a feeling of self determination, autonomy and general power when it comes to sex.
Others like the idea of being pampered and dressed up because they enjoy the feeling of being invested in and cared for in by their SO.
But even then, I'd say you need to keep your SO's taste in mind. If she's into eye contact and prolonged missionary where you just spend time taking each other in, don't get her bondage gear.
I agree and I would add that communication is important so ask her. A surprise sounds fun in a film or on TV but it is not worth it in real life unless you are sure she would like it.