Foil $32 : All creatures gain trample and haste until end of turn
Ultimately if an artifact is not noticeable at playing resolution then you have satisfied the majority
Here's another common synergy - fetch lands
While you lack a way to reliably give them haste, you can power up your enchantments with cards like Divine Visitation and Intangible Virtue 9 Brudiclad, Telchor Engineer The Layers Go Deep With a combat trigger to make a 2/1 blue Myr token at the start of your combat, Brudiclad, Telchor Engineer will quickly overwhelm the battlefield with all sorts of tokens, with them rarely looking the same turn after turn
Miscuts Again, this is a huge category and what people want can vary widely
For as long as Secret Lair cards remain this difficult to get ahold of, both at and after release, price spikes like Geralfs Messengers are likely to continue.