6x5.5 vs 5x5

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so I bought a big block for my 68 stepside and knew the front springs were gonna need to be replaced (it had cut springs and was real low with the small block) so i figured i might as well bag it......bought a kit from Scotts Hot rod.....then I thought hey might as well do a disc conversion with drop spindles while i have it apart.....so i bought a partial kit from ece thinking i could get the brake parts alot cheaper in town.....so he sent me everything but the master,calipers,pads and rotors..........thinking i would save about 250.....thats where i screwed up....did not do my home work and found out 72 rotors are 5 lug.....(anybody seeing a snowball effect??? lol)

if i buy ece 6 lug rotors (he is gonna be kind enough to give em to me for 80 ea.) thats about 200 to my door...but if i need a rotor i am not gonna find it at the corner store
if i go with the 5x5 lug rotors then i will need to buy the conversion axles to be 5x5....at 279 plus shipping (50 bucks maybe) so say 330

so my question is this.....is it worth going to 5x5 for the wheel options? i know 6x5.5 are limited but is that the only reason guys are going with the 5x5? or am i missing something? at this point im thinking i will need a rotor b4 i need an axle but i would also have to find/buy a cheap set of 5x5 rollers (which could be a couple hundred) until the suspension is done ... as to not get the wrong wheel offset on the new wheels and be stuck with that mess....any input would be great