Yeah I envy you- I love Trijicon and have standard Trijicon Green/Yellow night sights on my Glock 23 ... but for the Shield they were so expensive, I decided to try out the TruGlo TFOs I always wanted to try.
I got them for $74 and then had to pay for installation - BS IMHO because my LGS said he'd install them for free when I bought the gun, then he "didn't have the tool sorry..." - the gunsmith I had to pay $40+tax to used a brass punch to remove them. Now I am happy because I met a master gunsmith, 10 mins away, and he's a cool dude, but still, that was money I didn't expect to have to spend.
Anyway- I used Buds Gun Shop for my TruGlo TFOs and got the best price on the internet.
A simple Google on this came up with both Amazon.com selling them for $157 (probably near the best you'll do on these- they're Novak I believe so they're expensive).