I think spelt definitely has something to offer that white wheat does not. I did a spelt NEIPA and posted it here a little while ago here in this thread:
New England IPA - "Northeast" style IPA. Mine was 75% 2 row, 20% spelt, and 5% CaraFoam. Beer came out great and was most definitely the "softest and pillowiest" by far that Ive made where Ive mostly done my NEIPAs with combos of wheat/oats. This was also the first NEIPA I made with zero oats so I wasn't sure if my experience was due to the spelt or the fact that Ive never done an NEIPA without oats (which I still love BTW). So now I'm carbing up another NEIPA but this time substituted the 20% spelt for 20% white wheat. Its not super scientific: hopped them different, but used same water profile and yeast. At a first glance, the one with white wheat (which isn't fully carved or in its "prime" yet as Im 4 days post kegging) is great and has very nice mouthfeel but I definitely think the spelt one was softer and more "fluffy" which I absolutely love. The white wheat is still light and soft but its like the beer is more viscous/chewy - not necessarily bad at all because I dig both beers. But they are definitely different. When this beer that is currently carbonated with the 20% white wheat is done - I will do my best to produce the best beer porn pic ever, but admittedly - I don't have the talent/patience for the slow pour to put on a foam cap that
@Dgallo just posted today. That damn post looked like he put a soft serve ice cream on top of that awesome beer! lol.