For the base set, is it 1st edition, shadowless, unlimited, or 4th printing or mixed
The base set is around $100-120
The jungle set is $60-80
Fossil set is $50-60
The prices of these set went down that's why it's so low.
I don't know.. it's up to you. Depends if you need the money or not.
It's better to have a complete 1st edition or a complete unlimited rather than a mix.