Which is better among KT's Giga Internet 500M vs. 1G?

I'm thinking about applying for KT Giga Internet

I'm thinking about between 500M and   1G.

I think I'll use it often up to 1G, but the price difference is about 5,000 won, so

The speed is twice as fast, so I think it'll be much better.

Which one of the two would be better?

2527 2018-07-30 Gentleman

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