Is this rude?

ShelbyZee • 25, Instagram: ShelbyZee -Due January 12th with our first!
Is it rude to register for a $300 breast pump?
What about a $200 rocking chair? 
Or a $130 crib mattress? 
I'm a first time momma, I in no way expect anyone to spend this much! But it said this was the top registry items, so I registered for it... But I don't want to offend or anything!