Seriously guys? The shirts are $25 compared to $18. That's $7. If you buy four shirts, you're spending $28 more on quality clothing that you wear every week. It's not like you're buying some dress shirts that you'll wear only to formal events. This is your uniform, and if you guys are like me, you spend a lot of time in it.
Go with the quality pilotshirts.com tapered oxford shirts. They are a very durable shirt, and best of all they don't wrinkle too badly even on hot days. I've been wearing these shirts my entire career, and I'll never go with anything different (unless I happen to go to JetBlue, since they don't make blue shirts).
I understand wanting to save money, but when it comes to my uniform, I try to maintain a balance. Don't buy extremely expensive stuff (like anything from Cintas), but also don't get the cheapest stuff on the market. I don't want to look cheap... I want to look professional.