Communion on Ash Wednesday?

Worship planning resources frequently include a Eucharist service (communion) as part of the Ash Wednesday liturgy/service.  This has been somewhat puzzling to me, and so I ask you:

For those of you observing or participating in Ash Wednesday services, do you normally include the Eucharist or Communion?  Why or why not?

Any feedback or insights on this topic would be most welcome.  Thanks!