diff --git a/ThemeParkClicker/Attractions/Attraction.cs b/ThemeParkClicker/Attractions/Attraction.cs
index 9a0fb16..72fe77e 100644
--- a/ThemeParkClicker/Attractions/Attraction.cs
+++ b/ThemeParkClicker/Attractions/Attraction.cs
@@ -32,10 +32,6 @@ namespace ThemeParkClicker.Attractions {
             }
         }
 
-        public long GetPrice() {
-            return this.Type.InitialPrice;
-        }
-
         public void Update(GameTime time, TimeSpan passed) {
             this.ticketPercentage += this.Type.GenerationPerSecond * (float) passed.TotalSeconds;
             var amount = this.ticketPercentage.Floor();
diff --git a/ThemeParkClicker/ParkMap.cs b/ThemeParkClicker/ParkMap.cs
index 824ac38..1649417 100644
--- a/ThemeParkClicker/ParkMap.cs
+++ b/ThemeParkClicker/ParkMap.cs
@@ -108,5 +108,9 @@ namespace ThemeParkClicker {
             return null;
         }
 
+        public int GetAttractionAmount(AttractionType type) {
+            return this.attractions.Count(a => a.Item2.Type == type);
+        }
+
     }
 }
\ No newline at end of file
diff --git a/ThemeParkClicker/Ui.cs b/ThemeParkClicker/Ui.cs
index 2634ede..c11313d 100644
--- a/ThemeParkClicker/Ui.cs
+++ b/ThemeParkClicker/Ui.cs
@@ -108,7 +108,7 @@ namespace ThemeParkClicker {
                 IsHidden = true
             };
             foreach (var attraction in AttractionType.Attractions) {
-                var instance = attraction.Value.Create();
+                BigInteger price = 0;
                 var button = buyUi.AddChild(new Button(Anchor.AutoLeft, new Vector2(1, 40)) {
                     ChildPadding = new Vector2(4),
                     Padding = new Padding(0, 0, 0, 4),
@@ -125,7 +125,7 @@ namespace ThemeParkClicker {
                         });
                         yesNoUi.AddChild(new Button(Anchor.AutoInlineIgnoreOverflow, new Vector2(0.5F, 40), "Place") {
                             OnPressed = e2 => {
-                                GameImpl.Instance.Tickets -= map.PlacingAttraction.GetPrice();
+                                GameImpl.Instance.Tickets -= price;
                                 map.Place(map.PlacingPosition, map.PlacingAttraction);
                                 this.FadeUi(false, () => this.uiSystem.Remove(e2.Root.Name));
                             },
@@ -135,19 +135,24 @@ namespace ThemeParkClicker {
                         this.uiSystem.Add("PlacingYesNo", yesNoUi).Priority = -100;
 
                         this.FadeUi(true);
+                    },
+                    OnAreaUpdated = e => {
+                        // only update the price when the area updates, since it won't change while we're in the buy ui
+                        var markup = GameImpl.Instance.Map.GetAttractionAmount(attraction.Value) * 0.05F;
+                        price = (attraction.Value.InitialPrice * (1 + markup)).Ceil();
                     }
                 });
                 button.OnUpdated += (e, time) => {
-                    button.IsDisabled = GameImpl.Instance.Tickets < instance.GetPrice();
+                    button.IsDisabled = GameImpl.Instance.Tickets < price;
                 };
                 var center = button.AddChild(new Group(Anchor.Center, new Vector2(0.8F, 1), false) {CanBeMoused = false});
                 center.AddChild(new Paragraph(Anchor.AutoCenter, 1, attraction.Key, true));
-                center.AddChild(new Paragraph(Anchor.AutoCenter, 1, instance.Type.GenerationPerSecond + "<i ticket>/s", true) {TextScale = 0.08F});
-                var image = button.AddChild(new Image(Anchor.CenterLeft, new Vector2(1), instance.Type.TextureRegion) {
+                center.AddChild(new Paragraph(Anchor.AutoCenter, 1, attraction.Value.GenerationPerSecond + "<i ticket>/s", true) {TextScale = 0.08F});
+                var image = button.AddChild(new Image(Anchor.CenterLeft, new Vector2(1), attraction.Value.TextureRegion) {
                     Padding = new Vector2(4)
                 });
                 button.OnAreaUpdated += e => image.Size = new Vector2(e.DisplayArea.Height / e.Scale);
-                button.AddChild(new Paragraph(Anchor.CenterRight, 1, p => instance.GetPrice() + "<i ticket>", true));
+                button.AddChild(new Paragraph(Anchor.CenterRight, 1, p => price + "<i ticket>", true));
             }
             this.uiSystem.Add("Buy", buyUi);