I do get asked about larger posters, such as 30x40 or the classic movie poster size which is 27x40 (though they can get much larger, especially the older ones.)

I think I can comfortably offer 24x36 which is similar proportion to the 13x19 native format I work with. Of course I need to job out the printing, at least for now though I am considering purchasing a roll-fed printer (which takes up a lot of floor space - something I do not have) Price will be around $300? These are art prints: they are not mass produced on a giant four color press, they are printed on matte white paper and have that same saturated silkscreen-like Big Color.