How do you guys keep hearthstone refreshing.

For me, hearthstone has became boring,at least after a few games. Im not complaining about pirate warrior and net deck (its a little problem but im ok with it). I crafted baron geddon just to play a weird control elemental hunter, a random ide and see if it works. I know there is a lot of different decks to play but I dont have a full collection and i dont want to spend 50$ on an expansion. Arena can also be refreshing but im currently just saving up golds for the next expansion.

Think a lot of people here play a lot of hearthstone and wonder what drives you forward. Tried to reach legend one month (may i thing) but i only reached rank 1 and burned out my selves. Again for me what im playing against but what I do. Have tried wild but i dont like it, the old annoying cards pisses me of. Also have disenchanted a lot of stuff and maybe I will disenchant more, its almost necessary. Again how do you keep the game entertaining and not stale?