There's nothing wrong with building one-off projects with Veroboard and similar systems. Many of us don't have the facilities or expertise to design, etch and drill custom PCBs.
The only thing I would say as a long established Veroboard user is it's very, very difficult to build stuff without making mistakes - crossing tracks with solder, failing to isolate tracks, soldering components to the wrong track, etc etc. Been there, done that
When you *do* make an assembly error it can be very difficult to identify it.
Veroboard also isn't great for RF projects, but that may be down to my lack of skill
Paul