There are some advances in technology that do not always make financial or practical sense and two spring to mind immediately. The first is cellular chips in tablets- they often cause the overall price of the tablet to jump considerably (up to £100 / $150), but do offer the convenience of internet access all of the time. However, if you purchase a Mi-Fi unit for £60, you get the same speeds with slightly enhanced coverage and the ability to share the mobile internet connection with anyone you like. Up to 5 devices at a time can be connected and this makes it a much more practical and financially viable solution. Mi-Fis are very small and easy to carry around so the argument that they add bulk to your travelling kit does not hold up either. They will save you money and give you more flexibility in the future.
In-car sat-nav systems are another invention that cost a lot of money and offer limited flexibility. They can cost 5 times more than a standalone portable sat-nav system which can then be used by familiar members and in any car you like. Standalone systems are also quicker and cheaper to update with the latest maps so, besides the nice feeling of seeing it built into a dashboard, in-car sat navs offer very few benefits.
Convenience is objective and each person has their own definition of what convenience really is, but it isn’t always the best decision to go for the obvious benefit. Think about how you use your products and decide from there.