How much does it cost to collect 10000 NFT?

As a keen observer of the cryptocurrency and NFT (Non-Fungible Token) market, I'm curious to know: What is the approximate cost involved in collecting 10,000 NFTs? Given the vast array of NFTs available, ranging from digital artworks to game assets and even collectible cards, I realize the cost could vary widely. However, considering the current market trends and popularity of NFTs, I'm interested in a ballpark estimate. Is it feasible for an average investor to amass such a large collection, or would it require a significant financial investment?