[Discuss] recent Internet speed upgrade by Comcast?

[bogstad at pobox.com (Bill Bogstad)]

Recently I got email from Comcast telling me that they were going to increase
the speed of my Internet connection.   The package that I purchase includes
their Blast Internet tier.    In the past, they rated Blast as "up to
45Mbps".   The email
said that the new limit was going to be up to 105Mbps.   I did some
performance testing at that time and I did see numbers well above
45Mbps.   I can also go into the status page of the Comcast supplied
cable modem and see that there are 8 channels  bonded on the
downstream side with 4 on the upstream which can easily handle 105
Mbps.  I have two
questions though:

1. Has anybody else gotten a similar upgrade from Comcast recently?

2. What is Comcast's angle?   I have no other residential option for high
speed Internet in my community so why would they upgrade my speed for
no reason?

Bill Bogstad