It is limited by how far technology has come (I havn't heard of anything above 700mb/s yet to a private household), due to wireing technology. It costs a lot to maintain the wires, so the more money you have the more bandwidth you can get.
That's because most ISPs (Internet Service Providers) offers ADSL (Asymmetric Digital Subscriber Line) technology to their customers. You can find out more about ADSL here:...
Bandwidth has several related meanings: * Bandwidth (computing) or digital bandwidth: a rate of data transfer, throughput or bit rate, measured in bits per second * Bandwidth (signal processing) or...