If you are going to use the 3880 as a source of income or dont have a suitable replacement on maintenance or failures
I would suggest a service contract.
I bought a second hand R3000 myself and an Epson 4000 Pro. I took both of them to a Epson Service Partner and let them clean them and they changed the the Ink supply system on the R3000 since it was leaking photo black (that why I picked it up for less than 100€ approx 130 USD) and the 4000 I picked up as not tested "maybe" defective turn out everything was Fine except residue ink in the dampers formed a clog, they changed them (picked up the 4000 pro for 100€ too !) For Repairs and a 24 month service on both machines I paid € 450,- ALSO they equiped both printers with Full Inks.
After I got the printers I immedeately change to refillable cartriges and bulk ink.
I print for customers on a regualr basis and earn money with it. Had one local "small" maintenance since I got both printers and it was free. (technician cleaned the Cleaning Assembly and showed me how to do it )
Just gave him a good tip for that.
Am*zon has very good reliable service, I am a IT service guy and own a business, I do BUY printers and other units of am*zon to supply my customers with that since it so easy.
Local Pickup with incl. servies is another good option. Or even a refurbished 3880 pro with additional original servies directly from epson, since then you can pick any epson premium partner
thats my 5 cent