I have the EAP245, which is 3x3 and was only slightly more expensive than the EAP225 in my country. I'm pretty happy with it and it's far better than what my IS

I have the EAP245, which is 3x3 and was only slightly more expensive than the EAP225 in my country. I'm pretty happy with it and it's far better than what my ISP provided. It supports beam forming, band steering, and DFS channels. But I paid less than 90€ for it and the 4x4 routers all seem to be quite a bit more expensive. Am I really missing out on much by not going 4x4?