One thing is that there is a much larger array of interesting old software for the VAX rather than Alpha. The same will be true for Alpa compared with x86, but

One thing is that there is a much larger array of interesting old software for the VAX rather than Alpha. The same will be true for Alpa compared with x86, but at least it will be easier to run more modern software on x86. (I own both VAX and Alpha hardware and run VMS on both)