How long do custom shoes last?

[NHAero]

I have a pair of Luck shoes that I bought virtually new from a Paceliner in late 2019. They were custom for him. Since the left was larger than the right, I took a chance and bought them, hoping that the larger left shoe would accommodate the carbon fiber AFO brace I wear due to nerve damage and lost muscle function in my lower left leg. hey fit well enough that I've used them now for coming up on 5 years and over 21,000 miles. The only disadvantage is that they use Atop instead of Boa closures so parts are harder to get (I ended up buying spares from Aliexpress!).

They still look surprisingly good, the leather must be good quality and the construction quite good. I'd be pretty bummed if they suddenly fell apart though, so I'm thinking maybe it's time to get a backup pair made for me specifically. They appear to be surprisingly affordable - the highest cost shown on their site is 299 Euros.

These are MTB shoes because I use Eggbeaters on all my road and all road bikes.

Thoughts?

[Veloo]

I may not be the best for feedback as I've been off the bike for a few years.

I got my custom Luck MTB shoes in 2019. Very impressed with the quality and value. Still work fine and I personally think the ATOP dials work better than Boas I've had.
The person that helped me there to get the fit was good to work with.

Aside, I'd had D2 road shoes since 2015. Velcro straps. Still holding up fine and been thru more miles of course than the Lucks.