The gathering together with the saints is not just for a home body of believers. The word ekklesia has to do with a gathering of believers from their homes into a public setting that involves a council of elders (presbuteros) for the purpose of being edified by the word and doctrine and to be built up in the faith which is the highest form of worship for believers (John 4:24). This is what took place in (Acts 2) and in (v.42-47) we see a continuation of this...
46 And they, continuing daily with one accord in the temple, and breaking bread from house to house, did eat their meat with gladness and singleness of heart,
47 Praising God, and having favour with all the people. And the Lord added to the church daily such as should be saved.
The apostles were gathering the church together is many locations because of the persecution they were facing in the early days of the church after Pentecost. There were homes that believers were gathered together because it was available and open.
If believers were gathered in homes today without a central public location and the owner of the home got disgruntled and permitted them not to gather anymore, that would be disorderly and confusing to many. When you have a central location that believers can gather you eliminate that along with others things like accommodating larger groups of people. I have been a part of group of believers that met in a home of a precious couple that grew in grace and in numbers that the home was no longer able to accommodate. A building was rented and they met weekly in that location which was purchased a few years later. This became their meeting place and a location to the public, a whosoever will may come kind of location.
People came from everywhere because the word of God was so rich and God drew those people to that location to hear His word, to love them, to heal them, to comfort them, to build them up and so that they could have a place of worship, prayer and fellowship with others. The love of God permeated that assembly of believers which became a daily affair among the believers that branched out into other locations with the gospel and never lost sight of their beginnings. Believers should be able to leave that place they have gathered and return to their homes built up in the word and in the love of God.
Aside Note: What do you think Jesus meant in the following passage (Mark 10). Can this be applied to the church and body of Christ?
28 Then Peter began to say unto him, Lo, we have left all, and have followed thee.
29 And Jesus answered and said, Verily I say unto you, There is no man that hath left house, or brethren, or sisters, or father, or mother, or wife, or children, or lands, for my sake, and the gospel's,
30 But he shall receive an hundredfold now in this life, houses, and brethren, and sisters, and mothers, and children, and lands, with persecutions; and in the world to come eternal life.