执迷不悔 发表于 2012-4-19 08:58 " r( ?7 J. O0 ]: h
sounds it doesn't worth $2,500, should upgade other detail with this money
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From my own experience, it's so hard to do a perfect square corner. A round corner should be easier. But a builder may charge more, not because it's hard to do, but because it's perceived to be an upgrade and people are willing to pay for it.