Yeah. I gave up adding anything from them to my wishlist because they never drop in price to become actually affordable. They always stay expensive, even when the next game of the franchise is out.
Same. I might pick up Street Fighter 6 when it eventually gets rereleased with all the DLC as 'Super Street Fighter 6 Champion Ed. ver 3.' and only after it goes on sale.
I'm not sure what region you're in, but in USD, it's probably spent more time on sale at $30 than at the full price of $60 (EDIT: including right at this very moment). The free tier of their battle pass also gives out "character trials" like candy if you need to lab a matchup. It's not the best solution to the training mode DLC problem, but it's a solution that works on a budget.