1st Solo Series
If you missed a key 1st appearance book, then 1st Solo Series would be the next in line to get! If the solo has a rarer retailer incentive or a super low print then sometimes it become even more valuable then the 1st appearances. A good example is Ultimate fallout #4 Cover A vs Ultimate Spider-man #1 1:30 Retailer Incentive.
Ironheart #1 2nd Print Luciano Vecchio Variant CBCS 9.6
Sale price $47900 $479.00