How do I omit 5 or so DCs in a Get-ADDomainController search?

Hello,

We have about 110 Domain Controllers and sometimes I want the whole list with the exception of 5 or so such as the RODCs or DCs in a site, etc.  What is the best way to 'omit' the 5 or so machines from the query below?  So for example, if I didnt want DCUS1, DCGBR3, DCSA1, DCSA16, and DCMOS in the following list, I do I omit them easily?

$MyDC=Get-ADDomainController-filter*|SortName|Select-ExpandPropertyName

Thanks for your help! SdeDot