ROI for you is your call but ask yourself how much time you have to game. 2h evenings? More? Less? It will likely prove pence per hour for the entertainment provided over time.
I've not once in my life regretted picking up a gaming device from Sony. Immersive memory after memory and award-topping journeys without worry for cheaters and burnout from working on PC all day. Gaming investment, honestly, should be compared to what you'd spend on yourself not recreationally but therapeutically – because that's what gaming is for the mind: creative medicine and a competitive, high-strategy outlet.
Get right, dawg. Time to heal. *paging Dr Sony
For any Qs you have, we have you 100. Best peripherals, games, name it.