1st edition base set. How much would you value these at?

Hi.

I’m currently interested in collecting the original 1st edition base set cards. And I saw these cards on eBay. What I would like to know is how much would you bid on these cards, based on value and condition? Are they worth the investment?

www.ebay.co.uk/itm/17-1st-Edition-Shadowless-Base-Set-Common-Pokemon-Cards-Fantastic-Condition-/322224510202?hash=item4b0613d4fa:g:juQAAOSwIgNXrGBk

www.ebay.co.uk/itm/9-1st-Edition-Shadowless-Base-Set-Uncommon-Pokemon-Cards-Fantastic-Condition-/322224513771?hash=item4b0613e2eb:g:UpkAAOSwaB5XrGo5

www.ebay.co.uk/itm/4-1st-Edition-Shadowless-Base-Set-Energy-Pokemon-Cards-Fantastic-Condition-/322224515672?hash=item4b0613ea58:g:wg4AAOSwawpXrGxg

Not much of an investment. More of a kick start if you’re going for the set. I’d say around $100-$150 for those three lots combined.