It might be a good deal just make sure the seals are good. And it holds air There is power mod kit you can get for them they are not really plinkers so I hope you have an easy way to fill it Hopefully someone who has one will chime in to help you out
It's neither a good deal or a bad one. Both guns have similar value but very different purposes. If you want to plink in the backyard, the Dragon Slayer is one of the last air guns you would want. If you want to hunt wild pigs then it is more useful than a .177 BT65.