Is this engine builder nuts?

I live in Canada. Even Cheap oil is $6/7per liter. And our liters are a hair smaller than your 32 oz qts.And the retail on filters is approaching $15.Can. So an oilchange is $46Can, parts only, and cheap oil. So thats about $200 a year/12000miles. If you put cheap, bought-on-sale,semi-synthetic in your roller teener it could be $46 a year, unless maybe you have to add a liter.So in 5 years you could save $770Can. And if you lose a lobe? Thats an easy $700Can, to restore properly.
Now how much do we pay for a roller core? Around here, a teener is just about nothing. But say 150Can at the worst. And you can have a 360 for the same money.And the difference from a flat tappet kit to a roller kit? Idk. But certainly less than: 770+700-150 = 1320. And now I would have a 360 Magnum core. And 350HP is pie. And 430 ftlbs is pie too.And for a streeter;that is 3.23/3.55 territory
But to the OP..........like I said; necessary?,no. Desirable?,yes.