diff --git a/history.lua b/history.lua
index f09c03f..9192465 100644
--- a/history.lua
+++ b/history.lua
@@ -88,7 +88,7 @@ function public.value(item_key)
 			local weighted_values = {}
 			local total_weight = 0
 			for _, data_point in item_record.data_points do
-				local weight = 0.95^Aux.round((data_point.time - item_record.data_points[1].time)/(60*60*24))
+				local weight = 0.95^Aux.round((data_point.time - item_record.data_points[1].time) / (60*60*24))
 				total_weight = total_weight + weight
 				tinsert(weighted_values, {value = data_point.market_value, weight = weight})
 			end
@@ -97,8 +97,8 @@ function public.value(item_key)
 			end
 
 			value = private.weighted_median(weighted_values)
-			-- not seen in the last week or not ignoring at least two high and low outliers
-			unreliable = item_record.data_points[1].time < time() - 60 * 60 * 24 * 7 or not weighted_values[2] or weighted_values[1].weight + weighted_values[2].weight >= 0.5
+			-- not seen at least 3 times in the last two weeks or not ignoring at least two high and low outliers
+			unreliable = not weighted_values[3] or item_record.data_points[3].time < time() - 60*60*24*7*2 or weighted_values[1].weight + weighted_values[2].weight >= 0.5
 		else
 			value = private.market_value(item_record)
 			unreliable = true
diff --git a/post_frame.lua b/post_frame.lua
index 8244f46..1dc0613 100644
--- a/post_frame.lua
+++ b/post_frame.lua
@@ -799,6 +799,12 @@ function private.unit_vendor_price(item_key)
     end
 end
 
+function private.update_historical_value_button()
+    local historical_value = Aux.history.value(selected_item.key)
+    private.historical_value_button.amount = historical_value
+    private.historical_value_button:SetText(Aux.money.to_string(historical_value or 0, true, nil, 3))
+end
+
 function private.set_item(item)
     local settings = private.read_settings(item.key)
 
@@ -831,9 +837,7 @@ function private.set_item(item)
     private.set_unit_start_price(settings.start_price)
     private.set_unit_buyout_price(settings.buyout_price)
 
-    local historical_value = Aux.history.value(selected_item.key)
-    private.historical_value_button.amount = historical_value
-    private.historical_value_button:SetText(Aux.money.to_string(historical_value or 0, true, nil, 3))
+    private.update_historical_value_button()
 
     if not existing_auctions[selected_item.key] then
         private.refresh_entries()
@@ -935,11 +939,13 @@ function private.refresh_entries()
 			end,
 			on_abort = function()
 				existing_auctions[item_key] = nil
+                private.update_historical_value_button()
                 private.status_bar:update_status(100, 100)
                 private.status_bar:set_text('Done Scanning')
 			end,
 			on_complete = function()
 				existing_auctions[item_key] = existing_auctions[item_key] or {}
+                private.update_historical_value_button()
 				private.update_recommendation()
                 refresh = true
                 private.status_bar:update_status(100, 100)