Of course custom skates may be harder to resell. Depending on store and/or manufacturer policies, if you don't like them, they may be harder to return - though some bootmakers will accept exchanges if you just don't like the fit. I don't know Riedell's current policies.
That said, done right, custom boots can fit a lot better. (It is very important that the pre-manufacture fit and the post-manufacture adjustments be made by a very good fitter, otherwise the advantages of a custom fit disappear. I personally consider that far more important than aesthetic issues. But that's just me.)
Some people like painted blades. I don't know if Riedell would do this, but I think that blades that would flash as you spin because they are gold color on one side, silver on the other, would look kind of neat. Maybe you could paint boots that way too, or get sparkles embedded in the polish.
If you want to a custom appearance, and have the money, it may be worth it to YOU.
One person told me that her brother had had $5000 custom skate boots made, that used superior quality leather materials and construction. That could make them stronger and/or lighter, for a given stiffness level. That's a little extreme, and you probably don't need it, but if money is no object you could contact Riedell to ask if that is possible.
Lot's of things are "whim" purchases - e.g., a lot of people buy an expensive impractical car or house or custom clothing purely because they like the way it looks, or they like the high status associated with luxury, and often spend more than the cost of custom skates on these things. A lot of people buy computers that way too, or get expensive, inefficient and hard-to-use software because they like the look of the icons and screen effects. E.g., Macs, Windows 10, or most multi-media streaming devices.
It's like figure skating. You don't have to do it. It can be ridiculously expensive and time consuming, and you can get hurt. One hopes you do it because you want to.