A digital LPTV is a waste of bandwidth on channel 6. Full power stations can't cut it on channel 6 and tropo affects digital the same way it affects analog.
This is true of all lo-band VHF TV's, and mostly true of the hi-band VHF's, too. There are some cases where, despite the propagation problems and tropo issues, it DOES make more sense to stay VHF because of terrain; you need that somewhat-less-line-of-sight nature of VHF to get around hills and whatnot. But that's not really an issue in Boston, and it's especially not true for an LPTV which isn't going to get out far enough to get into the really hilly terrain.
There were a lot of people drooling over this LPTV window because they thought they could run ATSC digital
and run an analog carrier on 87.75MHz (or even 87.9MHz) to effectively create the "Franken(stein) FM's" like WNYZ-LP in NYC. WRGB in Albany was briefly doing it via cross-polarization. Clever of them, but the FCC realized the can of worms and put an end to it fairly quickly. I don't know if an official public notice has been put out, but I've heard direct from FCC engineers that they will not accept any of the new LPTV's from this filing window running any analog signal; it's ATSC digital only.
I'm sure some idiots will try to run a "Franken FM" anyways. And no doubt there will be a TON of applications just from people wanting to have an LPTV station. I've got half a mind to try myself just so I can own my own station and try to become a Red Sox affiliate for Rochester.
