Don't the Kinetic ones actually come with the Skunkworks IDF Weapons Set sprues (or NATO Weapons Set for the non-Israeli Vipers), whereas with modern Hase kits you're usually lucky to get even gasbags? (Older Hase Vipers at least had a pair of BL755's among other things.) If so, then Hasegawa only seems cheaper. 
Regarding the LoneStar resin set, has it actually been seen on sale somewhere, at a price that is not at least twice that of a Monogram XL? Yes, I know, LoneStar is more accurate, but for my tastes Monogram offers better value for money considering I would whiff it anyway...
Yup, you're right about the weapons, the Hase kit only has two pairs of aim-9s, the N/P and the L/M, the pair of BL755s, and a pair of aim-120B... and the 370 gallon drop tanks. Not the coolest, most modern ordnance but it is a full loadout for the Viper. Besides, this kit is supposed to be a parts donor for at least 3 other builds.
The Kinetic Sufa has the IDF weapons but if you think of it, you'll only use them on the kit if you're building a SUFA... not my intentions. The Hase kit has better detail in some areas(specially the CFTs and electronics spine) and the Kinetic in others(cockpit, weapons and gear bays), the rest is up to modelers preference. I already had another one of each so that will make 4 1/72 Sufas in my stash.

The LoneStar conversion sets, XL#1 and #2 and 2 DSI intakes cost me around 120€, with tracked shipping from Japan and customs fee.
Resin parts- 65€, Tracked shipping-20€, Customs fee-35€.
Considering that Monogram XLs are out of production, have worst detail, to buy one in auction and pay for shipping and then customs, it comes out much more expensive than 1 Lonestar set and the Hasegawa F-16(less than 15€) for parts, together.
Going by the last i saw on auction, a normal Monogram kit would cost me at least 60/80euros to buy now. The two i was lucky enough to find, came out cheaper indeed, but i spent a lot of time looking for them. The first i bought was in a Monogram job lot and cost me 40 euros for 3 kits from Canada. The second one was around 40€ for the kit alone and that was the cheapest i could find in almost 1 year of looking for it.
Hey, if you can find the Monogram XLs at a good price, great, but for me, the Lonestar conversions are a much better deal.
