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Here's the links to completed listings of sold/not sold for both sets:
As far as holding onto them in the hopes that they will increase in value, that typically doesn't work for these types of sets. I've watched many employee exclusives that have been released in the past over several years to see if such a thing would occur, and it never really has... rather prices have stayed steady. You won't get much more, if anything additional, out of them by waiting a few years. If you're interested in selling them, I would just sell them now.
If you want to try to avoid eBay fees, you could even post them for sale on here, I know there are a few members interested in items like these.
If you want to sell them on eBay, then yes, those prices are fair. If you're trying to sell them fast, then you may consider going 10% lower than the suggested/average prices to beat out competition. Look at those links I attached to determine the actual average of each set, then undercut it slightly.
If you want to sell them on here, you will avoid the 10% eBay fees so it's suggested that you offer a roughly 15% discount off of what you could sell them for on eBay. For example, if you could potentially sell it for $200 on eBay (albeit it might take some time to sell) then you would offer it on the forums for $170 (and you might sell it faster and to a more trustworthy person as Brickset members are 5 star buyers/traders).
I expect you'll have to lower your asking price even more if you are only selling local.