If you're already completely set up in Excel, there's no reason to switch.
is there no reason? licensing issues (like certain not so old purchased versions just getting disabled globally)? windows lock-in?
If you're set up in LO using visual basic outside of it then that would also mean there's no reason to switch.
what do you think, how is visual basic used in a spreadsheet? how do you imagine it being used outside of the spreadsheet app?