TPA authentication question

[hawaiian bam bam]

Hey Guys, I was wondering when it comes to TPA (PSA,JSA, Steiner, SGC, Etc...) what is your opinion on:

1. If an item has been authenticated by a TPA and the company goes belly up due to a scandal, if the autograph is legit, but the company is questionable, will the item still have value? (Example, you have a signed photo of willie mays, the autograph is authentic/legit , but has a GAI sticker on it) still valuable? or because the company is in question, the autograph even authentic isnt worth as much?

2. I ask because there are some HOF items on EBAY that im looking to purchase, but have GAI and JSA authentication stickers on them (the autos look authentic though) it seems like alot of people are unloading JSA items quickly, so im a little hesitant to buy anything JSA right now.

2. Do you prefer your autographs to be authenticated by a TPA or nor (for possible future resale value)

thanks guys, I always appreciate your advice and thoughts.