Currently you need at least 10,000 tezzies to be able to stake on your own.
Such a high threshold means the little guy can not stake on their own. This leads to centralization. Also fewer delegation services, because cost of starting one are high.
In BTC, 4 mining pools give you >50% of the hash power, and we will have just 2.
Is there a technical or economical reason why the roll size is so high, and would there be plans to lower it?