TBH, in that price range, there is no point in "investing" because nothing you can buy (unless you get super lucky at an outlet) of that quality will stand the test of time.
This.
The meme of "investing" in good clothing is a rather poisonous one in any case. I appreciate that falling stock markets have recently habituated us into thinking than falling asset values are the norm, but the normal purpose of an "investment" is that it increases in value over time. Clothing does not do this (outside of the celebrity/movie niche, and even then it's unpredictable). It is true than a decent rotation of high quality items lasts longer than a small rotation of poor quality items, so spending more upfront can mean less replacement need and therefore greater amortization over time. But considering a single suit purchase, esp. at this price level, as an investment is an unhelpful way of conceptualising the problem. Just get the nicest suit you can afford that fits you well.
Once you have sufficient finances to consider actually building a wardrobe with consistent regular purchases over time, you can start thinking about what kind of garments will give you the most flexible wardrobe for least long-term cost.
