Question : Have you considered flying out of an airport besides Manchester Boston Regional Airport (MHT)?
Answer : Departing from Manchester Boston Regional Airport is not the only way to get to Eindhoven Airport. Try looking for flights from Logan International Airport (BOS) as well. Over the upcoming months, flights from BOS to EIN are being priced 82% cheaper than flights from MHT to EIN. Being only 44 miles away, it's easily accessible for most.
Question : How long do most people visit Eindhoven?
Answer : Of course you're not most people, but if you were, you'd stay roughly eight days.