Binatone interview questions

I was interviewed twice by phone and at the end of second phone interview was told they wanted to fly me to Ohio the following week to meet with them in person. After numerous attempts to follow up regarding in-person interview and being told they still wanted to speak with me was told 6 weeks later they had decided to move in another direction. So unprofessional to keep me in a holding pattern while they continued to look for a 'better fit'.