Conditional components - does it waste a lot of resources?

Question

Suppose you had an <h:dataTable> with code like this:
<h:column>
    <h:inputText value="#{attr.value}"
     rendered="#{attr.typeName == 'string'}" />
    <h:selectBooleanCheckbox value="#{attr.booleanValue}"
     rendered="#{attr.typeName == 'boolean'}" />
    <h:inputTextarea value="#{attr.value}"
     rendered="#{attr.typeName == 'longstring'}" />... and so on. There might be several data types. On each cell only one component will be actually rendered.
Is this wasting a lot of memory on the server, by creating a lot of components that are not rendered? Is it something I should worry about?
I like this a lot better than using JSP and JSTL and <c:foreach> and <c:choose>, because the code is a lot more compact and readable. Will this cause any problems? Thanks.

Answer 1

At some point in the movie the playhead keeps going on the quicktime player but the movie is no loner showing any of the video or audio.