I'm currently attached to:

a 4 year old Epson Photo 2100 which does good photo repro at the top settings, takes glossy paper up to A3, and will do banners. Bought for its separate cartridges (I needed more blue than anything else).
A 10 year old duplexing HP5000 whose cartridges cost an arm and a leg but last ages. It's very fast once it's going, or was till the feed went a bit screwy. It will also do up to A3, card, etc etc. (and labels and stamps)
A cheap and cheerful Samsung duplexing B& W laser which is very quick, but whose running costs I am beginning to view with concern. It does up to A4 and is a bit fussy on paper when duplexing. It's fiddly for labels as well. But it was about a fifth the cost of the HP.
A HP Photosmart 7280 which I've just networked into, which seems adequate, can't say no more yet.

All have their good and bad points.

Commercial printing becomes economic at about 500 copies, or less if you want folded things, stapled things, both of which are difficult to DIY.
Digital printing is OK, but litho is better for large volume booklets etc.

Paws