As a well-supported app that receives frequent updates, 1Password 5.0, which clocks in at just under 31MB and requires Yosemite to run, is well worth its $50 price--particularly if you consider that, if you already own a copy of version 4, you will be able to upgrade for free.
The price of the app is even easies to digest now that you can purchase a single copy from the App Store and share it with every member of your family through Family Sharing. Not only does this give you an opportunity to introduce your loved ones (particularly children) to the importance of good password practices, it also allows you to spread the safety 1Password provides to all your data, and at no additional cost. This is a great deal by any measure.
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