With $2500 you can build a high end rig with a 1080Ti, so we are looking at a P6000 instead of a P4000, which brings you to 2777h(155days) computing power for $2500. It really depends on your needs, if you’re doing it as a profession, for the long run, your investment starts paying off past the 155th day.
Besides, your own personal DL box gives flexibility of adding more GPU and RAM which is very beneficial where I sometimes run multiple tasks on different GPUs. Plus, judging from experience, moving files between the cloud and your local machine is a daunting process. Not that it’s hard, but it’s not as convenient as I like it do be.