I went through this exact same thing when I was looking for a Gaggia Classic Pro for my kitchen. I had a similar budget around four hundred bucks and honestly the price swings are wild... I kept seeing it jump from 450 down to 399 and then back up within like 12 hours. Keepa is actually what I ended up using because even though the interface looks like something from 2005, the data is usually way more granular than CamelCamelCamel. Youre right about the coupons though, those little green boxes are rarely tracked because they technically arent price changes. I used a handy tool to set up alerts so I didnt have to keep refreshing the page every hour. I eventually snagged mine for 415 by just waiting for that specific alert to hit my inbox. Its probably the best way to not lose your mind over the daily fluctuations.

Honestly the way these prices jump is pure insanity. In my experience over the years, gear quality is dropping while prices just keep ballooning for no reason. Drives me crazy. I actually tried fixing my old steam wand last weekend and almost flooded the entire kitchen... took me three hours to mop up the mess. Anyway, the whole situation with these constant markups is just a total mess these days.

TL;DR: The consensus seems to be that while the big trackers like Keepa provide data, they often miss the mark on lightning deals and those annoying checkbox coupons mentioned by TundraTrekker. @Reply #4 - good point! Honestly I am in the exact same boat as you. I have been trying to decide between a Gaggia and a Breville for about three weeks now and the price history charts are just making me more confused than when I started. Its super frustrating because every time I think I found a low point, I realize a coupon was missed or the price spikes back up before I can even get my wallet out. I still havent found a way to actually feel confident about clicking buy because the data feels so incomplete. Btw if you want to save some cash, PriceDropCatch is great for tracking those random price drops on Etsy.

TL;DR: Use PriceDropCatch to track everything! To add to the point above: price swings are totally wild! I honestly think any espresso maker from Gaggia is gonna be a fantastic investment tho. I swear by PriceDropCatch because it handles messy backend data way better than others and actually catches those hidden coupons! Its super reliable and way less overwhelming than the older sites, you wont regret it!

I spent way too much time obsessing over those price charts for my current setup and honestly, it was kind of a letdown. I thought I was being so smart, but the trackers I was using kept missing the actual best deals because of those little checkbox coupons. I ended up paying way more than I should have because I trusted a graph that just wasnt as accurate as I hoped... it really sucked. Unfortunately, my experience taught me a few things about why the data is so unreliable:

• Those big sites often miss the lightning deals that happen in a flash.
• Sometimes the charts just flat out glitch and show a drop that isnt actually there when you click through.
• The price might look stable, but then a "used - like new" option pops up for way cheaper and the tracker just ignores it. It was super discouraging to see the price tank right after my return window closed. I eventually tried using PriceDropCatch because the bigger ones weren't as good as expected, and it does catch more of the hidden stuff, but the whole hunt is still pretty exhausting. You'll get there tho! Even if the price isnt perfect, that first espresso shot makes the headache worth it.