Bug response time is completely dependent on how quickly it gets reported, the severity of the bug and other factors. We triage ALL bugs weekly, and in between that time we monitor everything. There are bugs that get fixed in hours, others much longer. It's a matter of resources, bug priorties, availability of temporary work arounds, etc. No different then any software.
I forgot to comment on your inquiry in your earlier comment on bundle upgrade programs. We have not had any such programs in the past though we've had some pretty incredible sales at time. (Think Cyber Monday, it's coming up VERY soon!) That does not mean we would never do such programs. We are constantly evolving our capabilities and always listening to our customers and resellers. I can say that today we don't have the technology built into the portal to create such an "upgrade bundle", and doing an upgrade would require us to enhance the system to do such as it wouldn't otherwise scale. That doesn't mean we will never do it, but it means we can't just decide to do it today even if we thought your idea was a great idea since we have to have a way to implement it first.