Polka dot is an open-source project that works with shared protocol that enables Blockchain Networks to work with Synergy. The token serves three distinct purposes; Governance, Staking and Bonding. This is designed to co-exist with Leading smart contract Blockchains rather than competing with them. This is very appealing factor for some Investors. It won't be easy for the Polka dot to challenge Ethereum as many working projects are already using Ethereum Network even though Technically it is superior project but It is already Home of 197 projects those are working on its networks and many more willing to join it.
This is also evident from price movement that we have witnessed during the past month when its price moved from $2 to almost $6 that reflects great interest of Investors in this token. There are some predictions that within a year time , Dot will be Top 3 on Market cap.
In general, Polka Dot has a good value to be developed at this time, with the various governances they have developed, but currently Polka Dot is still less attractive to some people, these shortcomings must be overcome from now on to gain public trust in using their transactions.
I'm sure Polka Dot can exist in the future, if the existing shortcomings continue to be developed, but to reach the top 3 in the market cap is still far for them to pursue, currently people understand more about the condition of investors regarding the development of a project that is being initiated, but the problem is that investors believe it or not with the development.