RestKit experiment. Don't actually use this code... It took 2 minutes to parse 10K rows.

priceInfo.m

- (void) getPriceInfo{
	// Initialize HTTPClient
    NSURL *baseURL = [NSURL URLWithString:@"http://localhost"];
    AFHTTPClient* client = [[AFHTTPClient alloc] initWithBaseURL:baseURL];
    [client setDefaultHeader:@"Accept" value:RKMIMETypeJSON];

    // Initialize RestKit
    RKObjectManager *objectManager = [[RKObjectManager alloc] initWithHTTPClient:client];

	// Initialize managed object store
    NSManagedObjectModel *managedObjectModel = [NSManagedObjectModel mergedModelFromBundles:nil];
    RKManagedObjectStore *managedObjectStore = [[RKManagedObjectStore alloc] initWithManagedObjectModel:managedObjectModel];
    objectManager.managedObjectStore = managedObjectStore;

	[managedObjectStore createPersistentStoreCoordinator];
    NSString *storePath = [RKApplicationDataDirectory() stringByAppendingPathComponent:@"pricing.sqlite"];
    NSString *seedPath = [[NSBundle mainBundle] pathForResource:@"RKSeedDatabase" ofType:@"sqlite"];
    NSError *error;
    NSPersistentStore *persistentStore = [managedObjectStore addSQLitePersistentStoreAtPath:storePath fromSeedDatabaseAtPath:seedPath withConfiguration:nil options:nil error:&error];
    NSAssert(persistentStore, @"Failed to add persistent store with error: %@", error);

    // Create the managed object contexts
    [managedObjectStore createManagedObjectContexts];

    // Configure a managed object cache to ensure we do not create duplicate objects
    managedObjectStore.managedObjectCache = [[RKInMemoryManagedObjectCache alloc] initWithManagedObjectContext:managedObjectStore.persistentStoreManagedObjectContext];

	// Setup our object mappings
	RKEntityMapping *priceMapping = [RKEntityMapping mappingForEntityForName:@"Price" inManagedObjectStore:managedObjectStore];
	[priceMapping addAttributeMappingsFromDictionary:@{
		 @"name" : @"name",
		 @"value" : @"value"
     }];

	RKEntityMapping *productMapping = [RKEntityMapping mappingForEntityForName:@"ProductEntry" inManagedObjectStore:managedObjectStore];
    [productMapping addAttributeMappingsFromDictionary:@{
		 @"id" : @"id",
		 @"name" : @"name",
		 @"status" : @"status",
		 @"comment" : @"comment"
     }];

	RKRelationshipMapping* productPriceRelationship = [RKRelationshipMapping relationshipMappingFromKeyPath:@"prices.price"
                                                                                             toKeyPath:@"hasPrices"
                                                                                           withMapping:priceMapping];
    [productMapping addPropertyMapping:productPriceRelationship];

    RKEntityMapping *priceBookMapping = [RKEntityMapping mappingForEntityForName:@"PriceBook" inManagedObjectStore:managedObjectStore];
    [priceBookMapping addAttributeMappingsFromDictionary:@{
		@"name" : @"name",
		@"created" : @"created",
		@"lastCompiled" : @"lastCompiled",
     }];

	RKRelationshipMapping* bookProductRelationship = [RKRelationshipMapping relationshipMappingFromKeyPath:@"productEntries.productEntry"
                                                                                             toKeyPath:@"hasProductEntrys"
                                                                                           withMapping:productMapping];
    [priceBookMapping addPropertyMapping:bookProductRelationship];

	// Register our mappings with the provider using a response descriptor
    RKResponseDescriptor *responseDescriptor = [RKResponseDescriptor responseDescriptorWithMapping:priceBookMapping
																					   pathPattern:@"/home/css/GetPriceInfoDemo.json"
																						   keyPath:@"productPricing.priceBooks.priceBook"
																					   statusCodes:[NSIndexSet indexSetWithIndex:200]];

	[objectManager addResponseDescriptor:responseDescriptor];

	[objectManager getObjectsAtPath:@"/home/css/GetPriceInfoDemo.json" parameters:nil
                            success:^(RKObjectRequestOperation *operation, RKMappingResult *mappingResult) {
								NSLog(@"operation: %@", operation);
								NSLog(@"mappingResult: %@", mappingResult);
								NSError *error;
								[objectManager.managedObjectStore.mainQueueManagedObjectContext  save:&error];
							}
                            failure:^(RKObjectRequestOperation *operation, NSError *error) {
								NSLog(@"Hit error: %@", error);
								NSLog(@"operation: %@", operation);
                            }];

}