Polkadot is a great Defi project in my opinion, and one that has the potential to replicate in the Defi space the same type of influence that ethereum has in the smart contracts space.
Thr Polkadot blockchain is like a robust network that allows the integration and combination of different Defi platforms such that real life-like financial services can be gotten through the blockchain.
This makes it very valuable in my opinion and its tokens price relatively very much undervalued
Then everyone is undervalued if we are going to base on your argument. Even bitcoin is, because there are people who thinks that it should be in the 6 digits by now. Ethereum in the $3k value just base on the growth of bitcoin.
In any case though, Polkadot is a good investment as the people behind as very active and they have a clear roadmap as to what they wanted to accomplished in the future.
In this case, I agree with 'Dave1'. If we look at the proposal of 'adekogbe' then most popular cryptocurrencies seem undervalued.
However, if Polkadot is undervalued then with the due time that gap of being undervalued will reduce as happened with bitcoin.