The shop I work for owns a nice core drill set up. Yes we can use a vacuum pump to stick it down.
That said I feel much the same as Hal (hbiss) I use it when the surroundings are not 'to' finished.
If it's in the middle of a carpeted area we hire it out. If anything gets damaged it will be the core guys issue to deal with.
We dry core a lot of poke throughs into decks using a core bit for a large hammer drill. It works fairly well but you won't be doing it during a businesses operating hours. 10 to 30 minutes of very loud hammer drilling.
Finally if it is pre-stressed hollow core both the cables and the hollows present problems.
As has been mentioned you don't want to cut cables without an engineers blessing.
The hollows will prevent the poke through from maintain the fire rating.
Most need at least 4" of depth of the correct diameter.
