There can be several factors (not all related to software companies). - Budget Money goes to different departments. Some managers are better than others at wi

There can be several factors (not all related to software companies). - Budget Money goes to different departments. Some managers are better than others at winning internal bids. - Regulations and internal policies Big corp procedures can sink any request. - Project Consulting world. It's likely you get a lighter, shinier and faster machine if you’re going to spend lots of time at the client site. - Migration procedure At some companies the IT support can lack manpower to process high volume of migrations. I've seen this taking months.