Your Spot on Shaare! i have been apart of digital printing for 20 years now, and find some special colours are not worth it. Except for Clear, Gold and silver i don't see anything else making enough money to worry about. Don't get conned by fancy stuff.The proof is in the pudding. Do serious research. Visit a few customers that have had the machines for a while. Ask about SLAs to existing customers. Ask to run thousands of sheets to stress test the machine. Bring hard jobs. To me quality of service and total uptime will far outweight bells and whistles like white or pink etc. I've seen the Iridesse and the 7200's output and they are both very matte. For serious production I'd trust the Iridesse simply because you can visit many existing customers and its built mostly on proven technology. Do serious research, share and good luck!
What i look for is a solid machine, a proven track record, Sharp Higher resolution ( which is the one thing i find clients ask for ), the number one, is consistent colour from start to finish ( I have only found one company that is good at this, with no fuss), service that is near-by and treat the service people with respect. You might be under the pump, frustrated, angry, but a service tech is there to help, keep them onside. Dont go for the cheapest opinion ! it will cost you in the long run. If a sales rep says " The price is so good, you could get two for the price of one of the competitors ....... Run !!!!!