My phone is on a business account. I currently own the Samsung Epic Touch Galaxy S2 or whatever you want to call since October 2011 and I'm already eligible for an upgrade somehow. Sweet! Since my phone is through a business account I normally this go to a Sprint store to buy my phones. Are there any advantages going to Best Buy though? One note, if at all possible I want the new phone to be billed directly to our account, which is what I THINK I did last time.
Also, I am looking at the SIII and LTEvo - I can't decide. I'm kind of thinking over the Nexus. Doesn't Best Buy have a longer return policy? My question is though, how many times can I swap? If I get the S3 then try the LTEvo can I go back to the S3 if I decide I like that better?
edit: Or maybe even Radio Shack?
If upgraded through Best Buy, it can't be billed to your account.
Usually, my reasoning for going through Best Buy was because they always seemed to have better deals than going through Sprint (not always "better", but never worse and they do seem to have a lot more promotions...take for instance, the promotion they were having for the LTEvo pre-orders). Best Buy does have a longer return policy, but I don't know how that works in conjunction with the Sprint 14 day policy. No matter what, I think you're locked into a 2 year agreement, once the 1st 14 days passes. I don't know if Best Buy will allow you to "trade," as long as it's within their 30 day return/exchange policy. For Silver Premier members, it's actually a 60 day return/exchange. Again, I want to re-iterate that I'm not sure how it works in conjunction with Sprint's 14 day, so it'd probably be better to ask Best Buy directly.
I can't decide between either the SGS III or LTEvo either (and I'm also waiting for the other superphones to be released, prior to making that decision). Only real reasons to consider the G-Nex are Vanilla Android UI, Jelly Bean, and unlocked bootloader. All of them have their "good qualities." It just really comes down to the features that are most important to you. Go with the one that you feel would suit your needs the best. You really can't go wrong.
I've never upgraded through Radio Shack, but I have heard of their having promotions as well (similar to Best Buy) and I have had a price match done at Best Buy, just so I wouldn't need to go to Radio Shack. Thing is, I prefer Best Buy over Radio Shack (especially when it came to pre-orders) because if, for whatever reason, I decided not to get a phone, I'd always be able to find something to use the pre-order downpayment on. Since you aren't necessarily pre-ordering, they might be an option for you as well.
There are so many 3rd party retail avenues you can take to upgrade your phone. Amazon has had some great deals recently. Wirefly has had some great deals as well.