I have a Tiagra 52-39 (?!) as well as a 50-39-30 that I snatched up and refuse to part with. Sorry your lazy buttocks live on terrain where you find it hard to match the bike's gearing and your own abilities ... but since you know what you need .... you can still get what you need. You are an exception. (Most of us are .... )
I got that triple off an Ebay site ... some bike camp or something stripped them off a fleet of rental bikes. mine was in basically brand-new condition---like a new take-off.
Only drawback is i have to use one a limited range of britfters.
I just converted my last 52-42 to 50-34 and I find it an improvement. But I too am an exception.