RetroQuote

Texas TI-99/4A

5 auction sales recorded, 2014–2016. Prices in euro, final bid, shipping excluded.

Texas TI-99/4A
Photo: Rama & Musée Bolo, CC BY-SA 2.0 fr, via Wikimedia Commons (Texas Instruments TI-99-4A (white bg).jpg)
Working, good condition, typical price
€80average of 2 sales
Range €51 – €109. 1 of 2 with the original box.
All conditions: average €68, range €30 – €109.

By condition

Working, good condition
€80
2 sales · €51 – €109 · 1 boxed
Not working or untested
€40
2 sales · €30 – €49
New old stock
€100
1 sale · 1 boxed

Sales over time

Sale prices by yearEach dot is one auction sale, placed by year and price; colour shows the condition, filled dots had the original box.€0€20€40€60€80€100€12020142015201620172018201920202021202220232024202520262016: €51, Working, good condition2015: €109, Working, good condition, boxed2015: €49, Not working or untested2014: €30, Not working or untested2014: €100, New old stock, boxed
Working, goodWorking, poorNot working / untested New old stockUnknownfilled = with original box

All recorded sales

WhenConditionBoxPrice
2016 Working, good condition — €51
2015 Working, good condition Boxed €109
2015 Not working or untested — €49
2014 Not working or untested — €30
2014 New old stock Boxed €100

How to read these numbers

Every price is the final bid of a public auction that actually closed with a sale, converted to euro at the exchange rate of that day and checked by a reviewer. Fixed-price sales, bundles and spare parts are left out. Figures are averages of the recorded sales, so a model with few sales can swing from one year to the next: check the number of sales behind each figure. More on the method.

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