Well put. I do marketing work on a few projects that have commercial blogs. In mose cases, we're able to get 1K+ Tumblr followers in < 3 months (not counting "regular" RSS subscribers). (And none of the projects are famous/have famous founders/services/products) To get the same amount of regular RSS subscribers is much more difficult.
Tumblr is comparable to Twitter in that it's a common place to meet your readers/customers. Unlike a self-hosted blog, you don't have to ask visitors to leave where they are to visit you. So you're likely to get a bit more foot traffic/interaction, not to mention people passing it on/sharing it out (via reblogs).
Now if you're an already established service/otherwise famous, you might have no problem getting people to check you out. But even then, Tumblr has its benefits.
I don't think the choice is necessarily all or nothing between self-hosted or Tumblr. Many companies with "real" blogs also have Tumblrs. In many cases companies have multiple Tumblrs. (Not unlike Twitter, it's becoming common to have a separate Tumblr for different events/products/branches/divisions. IBM has at least 3. NBC has at least 4...)
I won't disagree that Tumblr has horrible performance issues. But it's still worth it. Twitter 3 years ago had bad performance issues, but it was/is still definitely investing in. No social site is forever, but they're great tools as long as you're aware of costs + benefits.
Tumblr is comparable to Twitter in that it's a common place to meet your readers/customers. Unlike a self-hosted blog, you don't have to ask visitors to leave where they are to visit you. So you're likely to get a bit more foot traffic/interaction, not to mention people passing it on/sharing it out (via reblogs).
Now if you're an already established service/otherwise famous, you might have no problem getting people to check you out. But even then, Tumblr has its benefits.
I don't think the choice is necessarily all or nothing between self-hosted or Tumblr. Many companies with "real" blogs also have Tumblrs. In many cases companies have multiple Tumblrs. (Not unlike Twitter, it's becoming common to have a separate Tumblr for different events/products/branches/divisions. IBM has at least 3. NBC has at least 4...)
I won't disagree that Tumblr has horrible performance issues. But it's still worth it. Twitter 3 years ago had bad performance issues, but it was/is still definitely investing in. No social site is forever, but they're great tools as long as you're aware of costs + benefits.