Are there any disadvantages to merged mining?

[TomCoin]

Eligius pool allows merged mining for NMC. Are there any disadvantages to use that possibility?

[zvs]

Not if it isn't your server and the server that's doing it is capable of it

[PenAndPaper]

Eligius pool allows merged mining for NMC. Are there any disadvantages to use that possibility?

The same namecoin that now worths like 10$ a piece? Isn't that like a huge option for a pool?

[DrHaribo]

You could argue that flushing work when there is a namecoin block change could cause a tiny slowdown of your mining. It depends on your hardware how this is handled though.

At Bitminter flushing at namecoin block changes is configurable per worker, in case this is a worry.

In practice the income from namecoin mining should far outweigh this.