is it okay to be particular about baby items with my son?

So I gave birth back in October to my first baby. With that being said I know I am overly particular about the items that are used with him. I'm not saying everything has to be brand new because I'm a huge fan of Once Upon Child, but when it comes to baby gear I prefer it to be slightly updated. For example: Cribs, strollers, car seats, pack n plays. So when my in laws begged us to let them keep our son for a couple hours and took him out in a stroller (which they didn't tell me they were taking him out) that was my husbands from when he was a baby and my husband is 30 I had a huge problem with that because I told them before I didn't want them using any old baby stuff with my son. My husband's  mother still has a 30 year old pack n play, changing table and stroller. I just don't think they are good quality. I bought extra strollers and pack n plays and told them all they have to do is ask for them and I will provide them. So when I told them I will bring them one they can keep at their house his mother got upset because I don't want my son in hers. Am I wrong?