Forget selling base/inserts unless selling as a lot or if vintage/super rookie/star. Set-up Org here and trade & sell (though not many buy!). I am (still) going through the tedious task right now but I have already seen positive results (happier wife because cards aren't all over the place....me now knowing where cards are ect LOL). Great bunch of folks here including set builders/team collectors, plus you will get insite on what folks think about what you have through scanning. You can always put something for sale on other sites. Welcome & Good Luck (got any Phillies inserts?)
*When it's all said and done - all we have left is our reputation.