Why can my weapon shop only buy 1 item?

I made a weapon shop, however whenever i try to buy a different item it always just buys the first one again.

heres my code

local camera = game.Workspace.Camera
local cam = game.StarterGui.Shop1.Cam
local cam1 = game.Workspace.Shop1.ShopCam1
local cam2 = game.Workspace.Shop1.ShopCam2
local cam3 = game.Workspace.Shop1.ShopCam3
local cam4 = game.Workspace.Shop1.ShopCam4
local cam5 = game.Workspace.Shop1.ShopCam5
local cam6 = game.Workspace.Shop1.ShopCam6


function leftClick()
    if game.StarterGui.Shop1.Cam.Value == 1 then
        if script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value >= 10 then
            script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value = script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value - 10
            game.Lighting.KnifeTools["Wooden Knife"]:Clone().Parent = script.Parent.Parent.Parent.Parent.Backpack
            script.Parent.Parent.TextButtonBuy.Text = "Buy - $10"
            script.Parent.Parent.TextBox.Text = "Wooden Knife"
            end
    else if game.StarterGui.Shop1.Cam.Value == 2 then
            if script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value >= 150 then
                script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value = script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value - 150
                game.Lighting.KnifeTools["Stone Knife"]:Clone().Parent = script.Parent.Parent.Parent.Parent.Backpack
                script.Parent.Parent.TextButtonBuy.Text = "Buy - $150"
                    script.Parent.Parent.TextBox.Text = "Stone Knife"
                    end
        else if game.StarterGui.Shop1.Cam.Value == 3 then
                if script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value >= 500 then
                    script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value = script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value - 500
                    game.Lighting.KnifeTools["Metal Knife"]:Clone().Parent = script.Parent.Parent.Parent.Parent.Backpack
                    script.Parent.Parent.TextButtonBuy.Text = "Buy - $500"
                            script.Parent.Parent.TextBox.Text = "Metal Knife"
                            end
                else if game.StarterGui.Shop1.Cam.Value == 4 then
                        if script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value >= 2500 then
                        script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value = script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value - 2500
                        game.Lighting.KnifeTools["Stainless Steel Knife"]:Clone().Parent = script.Parent.Parent.Parent.Parent.Backpack
                        script.Parent.Parent.TextButtonBuy.Text = "Buy - $2,500"
                                    script.Parent.Parent.TextBox.Text = "Stainless Steel Knife"
                                    end
                    else if  game.StarterGui.Shop1.Cam.Value == 5 then
                        if script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value >= 10000 then
                            script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value = script.Parent.Parent.Parent.Parent.leaderstats.Cash.Value - 10000
                            game.Lighting.KnifeTools["Golden Plated Knife"]:Clone().Parent = script.Parent.Parent.Parent.Parent.Backpack
                                            script.Parent.Parent.TextButtonBuy.Text = "Buy - $10,000"
                        end
                    end                     script.Parent.Parent.TextBox.Text = "Golden Plated Knife"
                end
            end
        end
    end
end

script.Parent.MouseButton1Click:Connect(leftClick)

im confused why this doesnt work because no matter which one I try and buy it always gives me the wooden knife. The cams are there because im moving the camera to a different spot in the workspace to look at the weapons.