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LEGO Ideas Sonic the Hedgehog price history, checked Nov 15, 2026: Good price. $99.00 is 7% below the $106.50 it normally sells for.

LEGO Ideas Sonic the Hedgehog – Green Hill Zone 21331 Collectible Set, Nostalgic 90's Gift Idea for Adults with Dr. Eggman Figure and Eggmobile

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Rated4.8(2,948 ratings)In stock

Good price

$99.00 is 7% below the $106.50 it normally sells for.

Now
$99.00
Normally
$106.50
Lowest in 142 days
$71.24(Jul 28)
Highest
$119.55
Evidence: Strong142 days tracked443 price changes

Where today's price sits

View on amazon.com (opens in a new tab)

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Good: 5%+ below normal. Great: 20%+ below. One email when it happens, at a price below today's $99.00. No account, no newsletter.

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Price history

Tracked since Jun 25 · 142 days · 443 price changes

Ahead of Black Friday 2026 (Nov 27), it is already 7% below its normal price of $106.50. LEGO Ideas Sonic the Hedgehog price history, checked Nov 15, 2026: current price $99.00, normal (typical) price $106.50, average $99.37 over 142 days, lowest $71.24 (Jul 28, 2026), highest $119.55 (Oct 11, 2026).

Loading the price chart.

  • Price
  • Not checked for 3+ days
  • Normal $106.50
  • 5% or more below normal

How often does it drop below normal?

In the 142 days we've tracked it, it stayed 5% or more below today's normal price for an hour or more 10 times, typically lasting about 1 day. It's below normal right now. Brief dips under an hour (23) aren't counted.

A count of what happened, not a prediction.

How other building sets are priced before Black Friday: Black Friday building sets on Amazon

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Get this as JSONThe same verdict and prices, from the TrackPin API.
GET/api/v1/product/B09JKZVBQ9
Request
curl https://trackpin.co/api/v1/product/B09JKZVBQ9 \
  -H "x-api-key: $TRACKPIN_API_KEY"

This is exactly what the API returns for this product. Free keys include 100 requests a day.

Request a key
Live response, As of 03:46 UTC
{
  "asin": "B09JKZVBQ9",
  "title": "LEGO Ideas Sonic the Hedgehog – Green Hill Zone 21331 Collectible Set, Nostalgic 90's Gift Idea for Adults with Dr. Eggman Figure and Eggmobile",
  "image": "https://m.media-amazon.com/images/I/81-AeHY9d2L._AC_SL500_.jpg",
  "currency": "USD",
  "category": "Toy",
  "category_label": "Toys",
  "in_stock": true,
  "price": {
    "current_cents": 9900,
    "reference_cents": 10650,
    "discount_pct": 7.04,
    "is_deal": true,
    "observed_at": 1794714104035,
    "changed_at": 1794693460321,
    "checked_at": 1794714104035,
    "source": "stored"
  },
  "verdict": {
    "label": "good",
    "text": "Good price",
    "pct_vs_normal": 7.04,
    "evidence": "strong",
    "stale": false,
    "suspect": false,
    "steady_since": null,
    "sentence": "Good price. $99.00 is 7% below the $106.50 it normally sells for."
  },
  "listing_claim": null,
  "stats": {
    "min_cents": 7124,
    "max_cents": 11955,
    "avg_cents": 9937,
    "history_days": 142,
    "price_levels": 617,
    "price_changes": 443,
    "distinct_prices": 21,
    "lowest_at": 1785257353558
  },
  "history": [
    {
      "price_cents": 11800,
      "from": 1794467490030,
      "to": 1794494251445
    },
    {
      "price_cents": 10650,
      "from": 1794509544505,
      "to": 1794530629157
    },
    {
      "price_cents": 7499,
      "from": 1794562440137,
      "to": 1794564444100
    },
    {
      "price_cents": 10650,
      "from": 1794566027699,
      "to": 1794675419914
    },
    {
      "price_cents": 9900,
      "from": 1794693460321,
      "to": 1794714104035
    }
  ],
  "last_seen": 1794714104035
}
// … 612 more steps in the full response

Normal price: the lowest price level the product held for at least 15% of the last 45 days (about a week). Prices within 3% of each other count as one level, and we use the lowest price in that level. How we calculate it → Prices are observations of amazon.com and may be incomplete or delayed. TrackPin is not affiliated with Amazon.