Do slant six swaps make you feel guilty?

Does it bother me to pull that slanted engine out of my 70 challenger. Every time I've had to pull one to replace it w/ another, nope not at all. 3 engines already in 562k miles, this last engine I replaced at 125k only because I bought the engine from the dealership I bought the car from. They found a 77 long block for me, had never been put on the road before me.found in a warehouse in mid-west. Does it bother me to put another slant in my challenger, naw, not when it's...........wait did I say bought it, naw, it was free.