Strongly typed querying in Umbraco

gistfile1.txt

/// <summary>
/// Return the all the data required for filtering and displaying object types.
/// </summary>
/// <returns></returns>
public static IEnumerable<ObjectTypeItem> GetObjectTypeItems()
{
    //Get the node where all projects and object types are below.
    var projectOverview = Umbraco.TypedContent(ConfigurationManager.AppSettings["projectOverviewId"]);

    return
        (
            from project in projectOverview.Children<ProjectDetails>()
            from objectType in project.Children<ObjectTypeDetails>()
            let city = project.City
            select new ObjectTypeItem()
            {
                ObjectType = objectType.DocumentTypeAlias.EnumParse<ObjectType>(true),
                ProjectStatus = project.Status,
                ObjectTypeTitle = objectType.Title,
                ProjectTitle = project.Title,
                CityTitle = city.Title,
                FromPrice = objectType.FromPrice,
                FromPriceExtra = objectType.FromPriceExtra,
                TillPrice = objectType.TillPrice,
                TillPriceExtra = objectType.TillPriceExtra,
                NumberAvailable = objectType.NumberAvailable,
                Location = project.Location,
                Images = objectType.HeaderVisuals,
                Url = objectType.Url                        
            }
        ).ToList();
}

@Shazwazza What if it was instantiated inside the static method? I mean, I use static methods all the time but I'm doing something like this:

var h = ContentHelper.GetHelper();

And this one is a method that @Nicholas-Westby was so kind to share with me - you can find it here: https://github.com/rhythmagency/rhythm.umbraco.extensions/blob/56a328f8c84d4f155d7201494be62ecfb0aaf32e/trunk/Rhythm.Extensions/Rhythm.Extensions/Helpers/ContentHelper.cs#L27 - it ensures that only one UmbracoHelper gets instantiated per HTTP request. But, even without that, why ditch statics all together and not just instantiate an UmbracoHelper?