Well as s/w improvements don't necessarily happen on a yearly basis, but people 
like being paid each year, I think the model is not unreasonable, as long as 
the cost is reasonable - which, for instance, the Adobe s/w isn't.  As one can 
tell from the profit margins of s/w companies.  So I do pay my Schrodinger 
PyMol  licenses each year.

                                just my 2c

                                        Adrian


On 23 Apr 2014, at 20:24, Engin Özkan <[email protected]> wrote:

> On 4/23/14, 1:53 PM, Francis Reyes wrote:
>> Office 365 is $10 a month, Adobe Creative Cloud (what used to be their 
>> Creative Suite) is $50 a month with an annual commitment.
>> 
>> Licensing the use of software on a time-limited basis as a business model 
>> seems like it's going to stick around.
> And that's why I am sticking with my last copy of Adobe Creative Suite 6, as 
> long as it will run on a computer. When CS6 no longer works, I might be 
> interested in moving to gimp and inkscape, which I had never considered 
> before.
> 
> I fully support Schrodinger to charge for an update, and they have vastly 
> improved PyMOL. But being told to re-buy PyMOL annoys me, even though I would 
> renew anyway just to support PyMOL development, and I can compile it just 
> fine. (The expiring XDS binaries are also annoying, but there the software is 
> free and the only purpose of the expiration is to force people to update, 
> which I fully support.)
> 
> I am hoping that Schrodinger will have a different model for academics.
> 
> SBGrid is a also good option if you can afford it. It comes with PyMOL 
> licenses.
> 
> Engin

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