I know a couple people in MA. One just north of Boston, and one in Glouchester (sp?). It is very different growing daylilies there. They have to be pretty tough. Very few will rebloom, despite what the descriptions say in the glossy pages of a mass produced catalog.
You may want to wait until next year, after you have moved, and visit some Amer. Hemerocallis Display Gardens in the area you move to. That way you can see with your own eyes what is doing well, and ask the garden owners who they buy from and they could give you lists of names of inexpensive plants to buy. Go to this page to find display gardens.
http://www.daylilies.org/AHSga...
Another thought... I am much happier with a bed of 75 different daylilies... than I would be with a bed of 75 of the same thing. Maybe it is just me. I had a bed of 50 Stella's once... it was pretty boring, in my opinion. I donated them all to an Arboretum. There is such a variety of heights, bloom types, and bloom times, that having a bed of different varieties makes the bloom season last longer, and also allows for mixing them with other perennials.