My boyfriends gifts offend me every time, what should I do?

Anonymous
I've been dating a man in his 40's for over a year and a half, there's an age gap between us (I'm 26) I have a stable life and so he does, in fact I found out recently that he's very wealthy, I love him dearly and he's very nice to me, but I get heartbroken and offended every time he buys me a gift, actually I only recieved few gifts, I bought him $1100 gift for his birthday and l send him flowers every time he gets cold, he was away on Valentine's but still I sent him $300 gift. And all I ever recieved is a $20 jewelry set and 4 cheap dresses worth $40-50 each, they are the cheapest dresses I have in my closet, I don't want to sound shallow, but why would you buy me cheap gifts when you can afford buying things that make any woman happy and he knows that I earn good money, I'd rather be with someone who's poor and generous than be with a rich guy who's stingy, he's a sweetheart and loves me dearly and very serious about us but I again I need to know is he being cheap or careful? I confronted he denied it and said I was being mean to him.
Updates
+1 y
First of all, thank you all for answering, whether your answer was positive of negative, I apperciate your time and honest opinion. I think I failed to mention few points:

1- I never knew his real age for 6 months, he told me he was a lot younger

2- he never calls/ texts unless he can call me for free

3- yes $40-50 dress is cheap when you live in an expensive city,only damaged items can be found with this price, I even had to mend them.

4- I make very good money myself
Updates
+1 y
Another point I'd like to highlight here, if I was a gold digger I'd leave him right away and find another guy to shower me with gifts, I wouldn't come here looking for advice, sometimes we women need to feel apperciated and loved through thoughtful gifts, you guys are right prices shouldn't matter, but it does only when your gift starts falling apart or is damaged because it was purchased from a thrift shop. For me I bought him a pricy gift because I thought he deserved it and it made me happy
My boyfriends gifts offend me every time, what should I do?
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