It's worth giving Splunk Cloud a try (even if you are not seriously considering its usage in the near future). If you have a valid Splunk ID, you can test-drive Splunk Cloud for free (for 15 days):
To use your Splunk ID to test drive Splunk Cloud, all you need to do is register and agree to the conditions and terms. This is the Terms of Service acceptance page:
Once you check the box (and then click on the button labeled Ok), you will be sent an instructional email, and you are ready to go!