Unless the platform is as cheap as said exclusive (which almost never happens unless its old platforms that don't carry a ton of value), no way.
I knew Wii U was not the best purchase in 2014 because a lot of writing was on the wall by then. However, I bought it for Mario Kart 8, Super Mario 3D World, and Super Smash Bros. for Wii U. And I knew I would play other games too. That's not just one exclusive, but a case of about 2-3 exclusives being enough.
Lifetime Sales Predictions
Switch: 161 million (was 73 million, then 96 million, then 113 million, then 125 million, then 144 million, then 151 million, then 156 million)
PS5: 115 million (was 105 million) Xbox Series S/X: 48 million (was 60 million, then 67 million, then 57 million)
PS4: 120 mil (was 100 then 130 million, then 122 million) Xbox One: 51 mil (was 50 then 55 mil)
3DS: 75.5 mil (was 73, then 77 million)
"Let go your earthly tether, enter the void, empty and become wind." - Guru Laghima