Combine with GCU and gift card to get the best price. GCU price is $47.99. I used my $15 reward (from buying a $150 GC with the promo) and gift card. Also, pick shipping, then switch to in-store pickup to get an additional $1 off.
https://www.bestbuy.com/site/super-smash-bros-nintendo-switch/5723319.p?skuId=5723319
https://www.bestbuy.com/site/super-smash-bros-nintendo-switch/5723319.p?skuId=5723319