It is practically impossible to shy away from the need to be constantly upgrading/updating. It seems professional services firms are lagging and Law dragging its feet the most when it comes to investment in IT.
More than 80% of firms in the three professional service sectors reported that they planned to invest in the next year to 18 months in innovations covering a wide range of areas, from general management and IT infrastructure, to business development and customer service.
http://www.legalfutures.co.uk/blog/making-investment-law-firms-technology-think-long-term