javascript - (storing jQuery Objects) How big is each jQuery object, is it a bad idea to store these objects?

Question

I am developing a single page HTML based application. I have different classes in my javascript for example one of my class is DataGridWidget. Do you thin thinks it is a bad idea to store $jqObject in my calss object? is it heavy (I might have something like 1000 objects from my classes which means 1000 pointer to jquery selector objects )

 DataGridWidget = function (parentWidget, id) {
         this.id = id;
         this.parentWidget = parentWidget;
         this.$jqObject = this.initUI();
  }

  DataGridWidget.prototype.initUI = function () {
        var $jqObject = $("<div class='datagrid_div' />");
        $("<table />").attr("id", this._getTableId()).appendTo($jqObject);
        $("<div />").attr("id", this._getPagerId()).appendTo($jqObject);
        $jqObject.attr("id", this.id);
        return $jqObject;
    }