I do a lot of work with LED technolgy at work for normal and external lighting purposes, money isn't the only reason for poor reliability.
In fact the most expensive external ones I ever fitted from a very large company at £550.00 apiece have experienced a 40% failure rate despite being from a very large reputable company with a full guarantee. The cheaper ones fitted elsewhere are so far 100% OK.
In general they are extremely reliable and any issues are usually driver related.
The ones shown here are about four years fitted, have been moved on the boat in position when i fitted the A frame last year and still work reliably.
The red and green light were around £35 delivered from the antipodes and the ARW about £30-40 delivered from down south over the internet.
I personally wouldn't go back to notmal lamps now even if the whole lot failed tomorrow, I had far more problems and poorer reliability before I fitted them.
However you pays your money and takes your choice.........