Gets SQL Edition Type for each installed SQL Instance

Get-SqlEdition.ps1

<#
.SYNOPSIS
    Collects each SQL Edition Type by Instance Name.
.DESCRIPTION
    Enumerates the registry for installed instances of SQL, then foreach installed instance, it enumerates the Edition Type.
.EXAMPLE
    Get-SqlEdition -ComputerName MySQLServer.mydomain.org
.EXAMPLE
    @("MyComputer","MyServer","MyDomainController") | %{ Get-SqlEdition -ComputerName $_ }
.NOTES
    Proper rights are needed to remote read registry values.
    http://technet.microsoft.com/en-us/library/cc732388.aspx
.LINK
    http://dotps1.github.io
#>

function Get-SqlEdition
{
    [CmdletBinding()]
    [OutputType([PSObject])]
    param
    (
        # ComputerName, Type String, System to enumerate SQL Edition aginst.
        [Alias("Server")]
        [ValidateScript({ if (Test-Connection $_ -Count 2){ return $true } else { throw "Failed to ping $_.  Please ensure the system is available." }})] 
        [Parameter(Mandatory = $true,
                   ValueFromPipeline = $true,
                   Position = 0)]
        [String[]]
        $ComputerName = $env:COMPUTERNAME
    )

    try
    {
        $hive=[Microsoft.Win32.RegistryKey]::OpenRemoteBaseKey('LocalMachine', "$ComputerName")
        $regKeys=$hive.OpenSubKey("SOFTWARE\\Microsoft\\Microsoft SQL Server")

        foreach ($instanceNames in $regKeys.OpenSubKey("Instance Names"))
        {
            foreach ($instance in $instanceNames.GetSubKeyNames())
            {
                $instanceName=$instanceNames.OpenSubKey($instance)
                foreach ($name in $instanceName.GetValueNames())
                {
                    foreach ($server in $regKeys.OpenSubKey($instanceName.GetValue($name)+"\\Setup"))
                    {
                        $sqlServer=[PSObject] @{
                                                    'ComputerName'=$ComputerName
                                                    'InstanceName'=$instanceName.GetValue($name)
                                                    'EditionName'=$server.GetValue("Edition")
                                               } 
                        return $sqlServer
                    }
                }
            }
        }
    }
    catch
    {
        Write-Output "Unable to enmerate the SQL registry hive. Either SQL is not installed on $ComputerName, or remote access is denied to the registry on $ComputerName."
    }
}