Sorry if this might come as annoying but what has the better value?

A single GTE era Sylvania 400W deluxe white clear-bander mercury vapor bulb for $29.19 USD.

A lot of four GTE era Sylvania 250W deluxe white mercury vapor lamps; one of the lamps is a Safeline. They all have a standard fully coated top. The cost is $36.30.

Which listing has the best overall value?

I would say unless you plan on burning through them all, getting one cooler lamp is better than four meh lamps. But I am more of a utilitarian person.

The Safelines are much harder to find than the Clearbanders. I’m sure if the Clearbander you want sells, another may come up again eventually. For the $6.30 difference, I think the Safeline listing is a better value. The fully coated Sylvanias really aren’t bad, and the T lamp is like a bit of gravy.

Alright, I think that's what I'll go with.

Little update:

I got in contact with the seller to see if any of the other lamps he had were Safeline lamps, and as it turns out, of the eight lamps he had, four of them were Safelines! So, I will hopefully be receiving four Sylvania 250W deluxe white Safeline mercury vapor bulbs.