Memcached is not run (or priced by) Heroku. That is an addon provided by a 3rd party (http://www.northscale.com/).
In addition, there is absolutely nothing stopping you from running your own, separate memcached server and pointing your Heroku app there. If you host it on EC2, then you should have very low latency to Heroku.
Heroku is obviously not perfect, but this particular criticism is not valid. That said, you can point this criticism at Northscale.
Comments
Memcached is not run (or priced by) Heroku. That is an addon provided by a 3rd party (http://www.northscale.com/).
In addition, there is absolutely nothing stopping you from running your own, separate memcached server and pointing your Heroku app there. If you host it on EC2, then you should have very low latency to Heroku.
Heroku is obviously not perfect, but this particular criticism is not valid. That said, you can point this criticism at Northscale.