It really depends upon the size of the organization.
Some organizations think they'll save money by having their employees bring their own systems in to do the work on. The more upstanding orgs will claim they're giving you a technology stipend to subsidize this behavior. All else being equal, it's not that uncommon for smaller startups.
IMO, most organizations stop this practice as soon as they either
- suffer a catastrophic chunk of malware destroying significant parts of the company
- suffer a titanic sized PR nightmare after sensitive company data is released out into the ether
As far as their statement of setting new revenue records each month, you'll need to dig further into those claims.
On the one hand, it may be true - they are setting new records, but the net effect is still so trivial that they can't afford to pay for hardware. So yes, you celebrate the little things, but they're still little things.
On the other hand, they could be blatantly disregarding the problems caused by a non-standard set of hardware for development, test, and sales. You'll have to get a read on the top brass to see if they're yanking your collective chains (read: find a new gig) or if this is just something the org is transitioning through.