Home DIY

I could do that, as it happens, as I have purposefully built a storage area in.

However, how does it compare in terms of price to either conventional halogen spots, or possibly LED spots?

Not too bad IIRC, and a single halogen bulb in the light box runs a plethora of terminals.
So you only have to replace that single bulb when it dies, and not start pulling out light fittings to get at bulbs.