I may in the small minority here...but...given that the current expense for Abu is about 20%-25% of what I see as ongoing monthly fees, and that it amounts to around $600 a year (as I can see it), that is NOT a trivial amount to me...maybe per person per month, it seems to be, but when viewed on annual basis, it seems a decent sized amount that could go to better use.
And while Adam and others may have enough to put in four digit amounts, I do NOT...my "income" to support my web site is fixed at $60 a year..and that has to cover web host + phone calls + postage + copies, etc...so my budget is extremely limited..that's how I ended up here to begin with...I was unable to find a commercial service at that time within my budget...
Now paying a bit more to get data backup and such may be possible but so far, the only real problem I've had is no backup to provide even a "we're sorry but our server is down" type msg.
I've been VERY pleased with the overall service and help I've gotten...given that I'm mainly a Windows user...so if that could somehow be addressed, then I'd be even more pleased.

-- Adam Chlipala <adamc@hcoop.net> wrote:
>(Regarding Abu):
It's closer to $1/mo. now.  We'll be at 60 members soon enough.  That 
amount of money is completely trivial to me, valued at less than the 
price I place on engaging in a discussion about how to remove it. ;-)  
If more people complain, then perhaps we can make it a priority.
-----------------and in another email said-------------------
First, as Nathan suggested, some of us are more willing to spend money 
on HCoop than you might realize.  I wouldn't be averse to throwing a 
four-digit amount into the pot