Laser cutter V vinyl cutter

wife has a vinyl cutter that is no longer of use due to computer upgrade and cutter not responding.
Vinyl cutter are used for cutting paper, cardboard etc soft stuff with a very fine knife controlled by image from computer. Does slightly over A4 size.
Now we can replace this with a different make or go to laser cutter but dont know diddly squat about them, good things, bad things, what to look for, recommended brands, size etc etc something that would cut fine metal and thin ply would be advantagous

SWMBO used to be involved with them and said that Roland are one of the best brands of vinyl cutters, look on ebay for vinyl as shop front dealers charge too much especially one company who refuse to supply unless you buy one of their cutters.
Laser, sorry, no idea.

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