Not sure how to feel....

So this may get long and I don't mean it to. I'll try and get straight to the point. My inlaws have money...a lot of money. I don't judge, I'm happy for them and they've worked their butts off to get where they are. My family (parents, grandparents, aunts, uncles) aren't struggling but we don't always have hundreds of dollars left over to just spend. Everyone has done so much helping us get the little things we need for the new baby. We're having another girl but certain things just get lost or are too "used" to use for a second child. We needed a lot of basic things. Receiving blankets, diapers, some storage baskets, breastfeeding accessories. So I made a registry to let people know what all we still needed. I figured it was easier so they didn't spend their money on something we already had. That would make me feel horrible. Well I emailed it yesterday to some family members who had asked to see it. I went on this morning to add a few things to it and nothing had been purchased (I didn't care, I just saw it). Well about an hour ago my mom called me and told me she went on to order a few things for me...and everything had been purchased already. I was confused so I went on to see if it was a glitch or something. Well my inlaws got EVERYTHING on the entire registry. Don't get me wrong, I'm insanely grateful, they DID NOT have to do that. But it kind of hurt my parents feelings. They wish they could do those things for us (not that we want it). But just because it would make them feel good. We are SO SO close with my parents, we'd be lost without eachother. And my heart broke when I heard the tone in my moms voice. I think she felt like she wasn't good enough and wasn't helping enough. I didn't even know what to say or do. I think the part that kind of irks me is, my in laws always do things like this. They try to one up people a lot. They never call, never really "talk" to us. But if we ignore them the world would explode. So they just buy things and send checks thinking thats what we want and thats enough. I'd love it even more if they would just call and keep in touch. My parents have no idea what it means to us that they're so involved in our lives and are ALWAYS there for everything and anything we need. I'm so thankful that my inlaws did this for us, but at the same time my hearts broken for my parents who try SO hard. Am I being over dramatic or something? I'm not sure how to feel.