Хранить много однотипных объектов на диске?

{
	"count": 10, //количество элементов
	"Event": 
	[//GameEvent Array
		{
			"ID": 0,
			"Text": "Hello!"
			{//EventInfo
				"TimeOut": 0
			}
		}
		{
			"ID": 1,
			"Text": "I keep data."
			{
			"TimeOut": 42
			}
		}
		//...
	]
}

DataContract]
    public sealed class GameEvent
    {
        [DataMember]
        public EventInfo EventInfo { get; }
        [DataMember]
        public string Text { get; }

        internal GameEvent(string text, EventInfo ei)
        {
            Text = text;
            EventInfo = ei;
        }

        internal GameEvent(string text)
            : this(text, default(EventInfo))
        { }
    }

[DataContract()]
    public struct EventInfo
    {
        [DataMember]
        TimeSpan TimeOut;

        internal EventInfo(TimeSpan timeOut)
        {
            TimeOut = timeOut;
        }
    }