Based on what exactly?
They have an incredible product that I can't live without, it's just incredibly painful trying to actually pay them money for something.
Honestly, I think their real play here is getting community contributions to fix stuff that's very broken and also to edge out Siren Solutions. SearchGuard, Kibi and Sentinl are all _very_ good tools.
If you want, I'd be happy to talk more about it so that we can understand where we can improve. Feel free to email me tyler.hannan<at>elastic.co
<disclaimer: I work at Elastic in Developer Relations>
There actually still is a pricing page somewhere on the site, but you have to dig for it, and I don't think it's correct anymore.