Answer: The main consideration for a support for home grown grapes is probably sturdiness. The plants are extremely heavy when covered with grapes! The support should also be a long term one because the vines are very long lived plants and it would be a shame to cause extensive root damage in order to replace a support.
A typical "working" model consists of strong post supports and wire for the vines to run along. This is utilitarian and keeps pruning and spraying and harvesting within easy reach.
A more decorative approach is to grow them on an arbor, the traditional thought being that is also a nice place to sit. This method requires one to climb on a ladder to work on the vines.
The choice is just according to personal preference.
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