If I can beg you NOT to make Delaware part of “Philadelphia & Suburbs”, please keep them separate. Delaware may not be a big state, but it is not a suburb of Philadelphia–particularly southern Delaware, which is several hours’ drive away. The Delaware Valley also includes the entire western edge of NJ, and I don’t think anyone from northern NJ wants to be lumped in there either.
A single board for Philadelphia & its suburbs does make a lot of sense (I suggested it initially). There might be some stray postings that discuss far northwest Delaware that sneak in there, but we who live in that area are used to checking both boards. But a completely combined board would make it very hard to search for Delaware-only posts, as they’d be subsumed under the much more voluminous Philly traffic.