OP, I know where you're coming from. I think if someone gave me a $50 box of chocolates my frustration wouldn't have been due to the cost of the gift (but obviously that's an issue when you know your DD's current situation). However, I would have said, hmmm, they obviously don't know me if they think I'd appreciate a $50 box of chocolates. Anyone who knows me understands I'd be just as happy with a $10 Whitmans Sampler. If they want to spend $50 on me, they have to come up with something else (books would be a good start!) if they want the gift to be a success.
I once gave someone a $50 box of chocolates. I had them shipped from Belgium and they are the best chocolates I have ever had. I knew the recipient liked chocolate and was perfectly fine with something like Whitmans, but I wanted her to have something she'd never get for herself. If she ever had the attitude that I should have come up with something else in order for it to be a success, it be the last gift I ever give them. Geez, how about some appreciation for someone even giving you a gift, not condemnation because you didn't want it?
Once they got the girls a gift card to a store I flat out told them we did not have here. The nearest one was 3 hours away.
. We were very poor when we first got married so I wore the other ring in place of an engagement ring and now that we aren't struggling anymore I was hoping for something along the lines of an engagement ring, not costume jewelry.
Especially since we set our limit at about $100 for each other. So it made me really mad that he did this. It was not a great Christmas. My mom and dad were there, and my mom pulled me aside and told me that he had called her and told her that he was getting me the camera and told her why. He told her that he loved how I took pictures and really wanted to see how I would do w/ a good camera. He also told her that in doing this, we could go on day trips and spend some good time with each other exploring different places. Later on, he and I talked about it and he told me all of this and why he did this. And that he saved his change and other small money over time in order to get this for me. It turned out to be one of THE most romantic and selfless things he's ever done and I've loved my camera ever since....not because of what it IS, but what it REPRESENTS. He thought enough of my creativity and enough to want to spend some quality time together to put this gift together. 
It may be something as simple as her wanting to get you something so frivolous that she knew you would never get for yourself. who knows....