If you have small or multi-use space that requires that your tools be moved regularly casters are the way to go. If you think you are going to have to possibly move the tools at some point in the future I would build in a manner that would allow for disassembly and moving with a dolly.
Just because something has casters on it does not mean it will be easy to move. We park in our garage so when I decided to get bigger/better tools had the idea to put all my tools on rolling work tables, I bought a utility trailer with a ramp and thought I could take about 30 mins to convert my garage to a workshop by bringing all my rolling tables home from our mini storage.
With the table saw it worked great.
I could roll it up and down the ramp with no problem. I could leave my house get to the storage unit and back to the house and have the saw in my garage is 15 mins.
Next up was my miter saw station and I built this monster.
It worked great in the garage and while it was cumbersome I could move it around the garage as needed.
Then came the time to put it on the trailer and take it to storage. It was too heavy to push up the ramp. Even after I bought a winch for a boat trailer it took me over an hour to get it loaded on the trailer.
It was a lesson learned, so about 2 months after building the miter saw/drill press/band saw/ sander table I took my circular saw to it and it is now 3 smaller carts.
I have more invested in casters that I do in the wood to build the cabinets. So if you don't need to move the tools regularly I wouldn't use casters if for no other reason than cost.