After the last iPod touch was discontinued, the entire range of iPod models have seen a slight increase in value, but devices in used condition continue to experience heavy depreciation.

iPods have depreciated by an average of 89 percent on average since their launch, ranging from 98 percent depreciation for some models from 2003 to 71 percent for seventh- generation iPod touch models, according to trade-in pricing data from over 40 U.S. independent tech resale companies gathered by Sell

The sixth- and seventh-generation iPod touch models are still worth the most, especially in higher storage configurations. The seventh-generation iPod touch has the best resale value, with owners able to get around $100 for the device if it is in good condition, while slightly older models with smaller storage configurations sell for just upwards of $60. The most valuable iPod Classic is the 160GB model, which is worth $61 on average. The iPods have lost 90 percent of their value due to their age.

The average resale value of iPods has remained fairly static over the past six months, but there has been a marginal recovery in value since Apple announced that the final iPod would be discontinued. On May 1, the average depreciation rate was 86.3 percent, but it dropped to 83.4 percent on May 16. The value of the seventh-generation iPod is up by more than 13 percent since Apple announced it earlier this month. Over time, there may be further improvement for some models.

The data shows that despite their cult status, most used iPods will continue to depreciate over time. It's a good time to sell a used iPod, as interest in the device has led to some value recovery, and potential further gains in the coming weeks. In the coming months, the exact impact of Apple's decision to stop selling iPods on used devices will become clearer.