@Simplespeed your comments are valuable as a guide for getting as close as possible to finding the balance of effort/performance for a sled without EPS.
Finding a balance that works for you, in the conditions you ride, and for the way that you ride is what matters. If you only ride great snow then carbides are going to matter less than the keel and in general, steering will require less effort. Similarly if you are just a cruiser, EPS may be less of a benefit. If you ride hard, groomed trails at speed, or tight twisty trails, there will be no doubt that a sled with EPS will outperform a sled without EPS by any effective measure. At anything above mid range speed EPS is not engaged (as much) but as stated, it will still help attenuate bump steer, darting, etc.. all of which require effort to overcome, especially when riding hard.
I can change the truck tires with a 4-way and a jack. I would much rather do it with a lift and an impact wrench.