I have gone three routes, and will share my own pros and cons.
1. Cards in top loaders, which are then glued.
Pros: No risk to cards. Can arrange however you like.
Cons: Extra glare from glass plus top loaders.
2. Corner adhesives.
Pros: Can arrange freely. Looks great...Corner mounts nearly invisible. Mounts were soft and flexible enough that I didn't ding any corners.
Con: Other than at corners, card surfaces touch glass directly. I would at least be nervous with very high value cards. In my case, the most valuable Newton here might be $25.
3. Pennzoni case with tip loaders
Pros: No damage to cards; easy
Cons: Can't get very creative. Glare.
Of couse nothing I've ever done holds a candle to our fellow Chief Bender collector. His displays are the nicest I've seen, and I have to imagine that protecting his cards was a high priority.
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