Perhaps it has to be experienced how easy it is to set up and use a biscuit= jointer. You can literally take it out of the box, maybe adjust the height= stop since last use, and go.
I mainly use it for edge jointing solid timber boards when I need extra wid= th. Simply lay the two boards side-by-side as they will be joined, strike a= mark across in a few places (no measuring, doesn't have to be accurate), a= nd apply the jointer to the marks. Glue and clamp. The cut-outs are very fo= rgiving for minor adjustment.
Similarly easy to do stacked biscuits.
I guess as usual it comes down to "will you get enough use out of it?", and= maybe "do you just want one anyway?".