Keep in mind that bloody everything on the paragon store is free points as well on Beta (Except, interestingly enough, Prestige Boosters for SG Prestige. Hmmm. Annoying.)
There's a *lot* of good reasons to not allow a Beta character back on the live servers.
So? Most of those are things a live player could get as well, again, with sufficient Paragon Points, or are superseded by things you
can't get for free.
The shop IO sets? They can't be boosted, so while they're useful when levelling up (since they grow with you, but even then they have the same minimum level requirements as their crafted counterparts), once you hit Lv50 actual crafted Lv50 IOs are superior to them. The costume parts? Cosmetic. Cosmetic pets? Self-explanatory - there are no buff pets in the shop. Powersets? A VIP on live would have them all unlocked from the get-go. Temporary travel powers, like the rocket board, magic carpet, coyote/panther shapeshifts? Not only are they one-time purchases, but they don't allow combat while using them, and they don't outperform actual travel powers. Costume slots? Cosmetic. Tailor Tokens, super tailor access?
Cosmetic. Extra enchancement/salvage/storage/auction capacity?
Does not affect combat against or with other players in any way.
An argument
might be made for Ninja Run or Beast Run, but they're basically a travel power. They're slower than actual Super Speed and don't provide as much of a jump bonus as Super Leap. You even slow down to normal speed and jump height if you attempt to fight while using them, just like Super Speed, and they don't provide Super Speed's stealth bonus.
Basically, everything that is an 'advantage' or 'for free' on beta is either cosmetic or a levelling aid. There's no difference between a beta level 50 character, and a lv50 character that's been powerlevelled extensively via an AE farm or uses lots of Paragon Points for super packs, team dual inspirations, amplifiers, and Warwolf/Sig Summon powers (which, BTW, have limited charges if shop-bought). From what I gather,
Sentinel+ Beta Extractor doesn't even save your temporary powers and inspirations, so those would be moot.
Now, tell me, what have I not listed?
I would hasten to note that all of these things are available on live, also from the Paragon Market. The only
real difference between a beta and a live character is the quantity in which they can obtain them, and that only applies to things
which are not one-time purchases.
If there's some other advantage of the zero-point Paragon Market for beta players that a live player cannot match,
I fail to see it.